Removed phpunit/phpunit

Author: Nyholm

Tests/Unit/Collector/StackPluginTest.php

@@ -189,14 +189,14 @@ public function testOnError()
 
         /*
          * Use the correct PHPUnit version
-         * PHPUnit wrap any \Error into a \PHPUnit_Framework_Error. So we are expecting the
+         * PHPUnit wrap any \Error into a \PHPUnit\Framework\Error\Warning.
          */
         if (class_exists('PHPUnit_Framework_Error')) {
             // PHPUnit 5.7
             $this->setExpectedException(\PHPUnit_Framework_Error::class);
         } else {
             // PHPUnit 6.0 and above
-            $this->expectException(\PHPUnit\Framework\Error\Warning::class);
+            $this->expectException(PHPUnit\Framework\Error\Warning::class);
         }
 
         $this->collector

composer.json

@@ -33,7 +33,6 @@
         "symfony/dependency-injection": "^2.8.3 || ^3.0.3"
     },
     "require-dev": {
-        "phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.1",
         "phpunit/php-token-stream": "^1.1.8",
         "php-http/curl-client": "^1.0",
         "php-http/socket-client": "^1.0",