[Backport] Eliminate usage of "else" statements

app/code/Magento/Backend/Block/Widget/Grid/Column/Filter/Radio.php

@@ -31,8 +31,7 @@ public function getCondition()
     {
         if ($this->getValue()) {
             return $this->getColumn()->getValue();
-        } else {
-            return [['neq' => $this->getColumn()->getValue()], ['is' => new \Zend_Db_Expr('NULL')]];
         }
+        return [['neq' => $this->getColumn()->getValue()], ['is' => new \Zend_Db_Expr('NULL')]];
     }
 }

app/code/Magento/Backend/Block/Widget/Grid/Massaction/AbstractMassaction.php

@@ -222,9 +222,8 @@ public function getSelectedJson()
         if ($selected = $this->getRequest()->getParam($this->getFormFieldNameInternal())) {
             $selected = explode(',', $selected);
             return join(',', $selected);
-        } else {
-            return '';
         }
+        return '';
     }
 
     /**
@@ -237,9 +236,8 @@ public function getSelected()
         if ($selected = $this->getRequest()->getParam($this->getFormFieldNameInternal())) {
             $selected = explode(',', $selected);
             return $selected;
-        } else {
-            return [];
         }
+        return [];
     }
 
     /**

app/code/Magento/Backend/Block/Widget/Grid/Massaction/Extended.php

@@ -218,9 +218,8 @@ public function getSelectedJson()
         if ($selected = $this->getRequest()->getParam($this->getFormFieldNameInternal())) {
             $selected = explode(',', $selected);
             return join(',', $selected);
-        } else {
-            return '';
         }
+        return '';
     }
 
     /**
@@ -233,9 +232,8 @@ public function getSelected()
         if ($selected = $this->getRequest()->getParam($this->getFormFieldNameInternal())) {
             $selected = explode(',', $selected);
             return $selected;
-        } else {
-            return [];
         }
+        return [];
     }
 
     /**

app/code/Magento/Backend/Controller/Adminhtml/Auth/Login.php

@@ -50,9 +50,8 @@ public function execute()
         // redirect according to rewrite rule
         if ($requestUrl != $backendUrl) {
             return $this->getRedirect($backendUrl);
-        } else {
-            return $this->resultPageFactory->create();
         }
+        return $this->resultPageFactory->create();
     }
 
     /**

app/code/Magento/Backend/Controller/Adminhtml/System/Account/Save.php

@@ -32,9 +32,8 @@ private function getSecurityCookie()
     {
         if (!($this->securityCookie instanceof SecurityCookie)) {
             return \Magento\Framework\App\ObjectManager::getInstance()->get(SecurityCookie::class);
-        } else {
-            return $this->securityCookie;
         }
+        return $this->securityCookie;
     }
 
     /**

app/code/Magento/Backend/Model/Menu/Item.php

@@ -503,12 +503,11 @@ public function populateFromArray(array $data)
         $this->_tooltip = $this->_getArgument($data, 'toolTip');
         $this->_title = $this->_getArgument($data, 'title');
         $this->target = $this->_getArgument($data, 'target');
+        $this->_submenu = null;
         if (isset($data['sub_menu'])) {
             $menu = $this->_menuFactory->create();
             $menu->populateFromArray($data['sub_menu']);
             $this->_submenu = $menu;
-        } else {
-            $this->_submenu = null;
         }
     }
 }

app/code/Magento/Braintree/Test/Unit/Model/Report/BraintreeTransactionStub.php

@@ -34,10 +34,9 @@ public function __get($name)
     {
         if (array_key_exists($name, $this->_attributes)) {
             return $this->_attributes[$name];
-        } else {
-            trigger_error('Undefined property on ' . get_class($this) . ': ' . $name, E_USER_NOTICE);
-            return null;
         }
+        trigger_error('Undefined property on ' . get_class($this) . ': ' . $name, E_USER_NOTICE);
+        return null;
     }
 
     /**

app/code/Magento/Bundle/Block/Adminhtml/Sales/Order/Items/Renderer.php

@@ -95,9 +95,8 @@ public function getChildren($item)
 
         if (isset($itemsArray[$item->getOrderItem()->getId()])) {
             return $itemsArray[$item->getOrderItem()->getId()];
-        } else {
-            return null;
         }
+        return null;
     }
 
     /**
@@ -219,9 +218,8 @@ public function getOrderItem()
     {
         if ($this->getItem() instanceof \Magento\Sales\Model\Order\Item) {
             return $this->getItem();
-        } else {
-            return $this->getItem()->getOrderItem();
         }
+        return $this->getItem()->getOrderItem();
     }
 
     /**

app/code/Magento/Bundle/Block/Catalog/Product/View/Type/Bundle/Option.php

@@ -191,9 +191,8 @@ public function isSelected($selection)
             return in_array($selection->getSelectionId(), $selectedOptions);
         } elseif ($selectedOptions == 'None') {
             return false;
-        } else {
-            return $selection->getIsDefault() && $selection->isSaleable();
         }
+        return $selection->getIsDefault() && $selection->isSaleable();
     }
 
     /**

app/code/Magento/Bundle/Block/Sales/Order/Items/Renderer.php

@@ -142,9 +142,8 @@ public function getValueHtml($item)
         if ($attributes = $this->getSelectionAttributes($item)) {
             return sprintf('%d', $attributes['qty']) . ' x ' . $this->escapeHtml($item->getName()) . " "
                 . $this->getOrder()->formatPrice($attributes['price']);
-        } else {
-            return $this->escapeHtml($item->getName());
         }
+        return $this->escapeHtml($item->getName());
     }
 
     /**
@@ -179,9 +178,8 @@ public function getChildren($item)
 
         if (isset($itemsArray[$item->getOrderItem()->getId()])) {
             return $itemsArray[$item->getOrderItem()->getId()];
-        } else {
-            return null;
         }
+        return null;
     }
 
     /**

app/code/Magento/Bundle/Model/Plugin/PriceBackend.php

@@ -29,8 +29,7 @@ public function aroundValidate(
             && $object->getPriceType() == \Magento\Bundle\Model\Product\Price::PRICE_TYPE_DYNAMIC
         ) {
             return true;
-        } else {
-            return $proceed($object);
         }
+        return $proceed($object);
     }
 }

app/code/Magento/Bundle/Model/Product/Type.php

@@ -1015,9 +1015,8 @@ public function shakeSelections($firstItem, $secondItem)
         ];
         if ($aPosition == $bPosition) {
             return 0;
-        } else {
-            return $aPosition < $bPosition ? -1 : 1;
         }
+        return $aPosition < $bPosition ? -1 : 1;
     }
 
     /**

app/code/Magento/Bundle/Model/Sales/Order/Pdf/Items/AbstractItems.php

@@ -92,9 +92,8 @@ public function getChildren($item)
 
         if (isset($itemsArray[$item->getOrderItem()->getId()])) {
             return $itemsArray[$item->getOrderItem()->getId()];
-        } else {
-            return null;
         }
+        return null;
     }
 
     /**
@@ -244,9 +243,8 @@ public function getOrderItem()
     {
         if ($this->getItem() instanceof \Magento\Sales\Model\Order\Item) {
             return $this->getItem();
-        } else {
-            return $this->getItem()->getOrderItem();
         }
+        return $this->getItem()->getOrderItem();
     }
 
     /**

app/code/Magento/Bundle/Pricing/Adjustment/Calculator.php

@@ -271,9 +271,8 @@ public function calculateBundleAmount($basePriceValue, $bundleProduct, $selectio
     {
         if ($bundleProduct->getPriceType() == Price::PRICE_TYPE_FIXED) {
             return $this->calculateFixedBundleAmount($basePriceValue, $bundleProduct, $selectionPriceList, $exclude);
-        } else {
-            return $this->calculateDynamicBundleAmount($basePriceValue, $bundleProduct, $selectionPriceList, $exclude);
         }
+        return $this->calculateDynamicBundleAmount($basePriceValue, $bundleProduct, $selectionPriceList, $exclude);
     }
 
     /**

app/code/Magento/Bundle/Pricing/Price/BundleSelectionPrice.php

@@ -184,8 +184,7 @@ public function getProduct()
     {
         if ($this->bundleProduct->getPriceType() == Price::PRICE_TYPE_DYNAMIC) {
             return parent::getProduct();
-        } else {
-            return $this->bundleProduct;
         }
+        return $this->bundleProduct;
     }
 }

app/code/Magento/Bundle/Pricing/Price/ConfiguredPrice.php

@@ -144,9 +144,8 @@ public function getValue()
                 $this->priceInfo
                     ->getPrice(BundleDiscountPrice::PRICE_CODE)
                     ->calculateDiscount($configuredOptionsAmount);
-        } else {
-            return parent::getValue();
         }
+        return parent::getValue();
     }
 
     /**