Remove unused package-private FieldAttributes methods (#2162)

Author: Marcono1234

gson/src/main/java/com/google/gson/FieldAttributes.java

@@ -135,27 +135,8 @@ public boolean hasModifier(int modifier) {
     return (field.getModifiers() & modifier) != 0;
   }
 
-  /**
-   * Returns the value of the field represented by this {@code Field}, on
-   * the specified object. The value is automatically wrapped in an
-   * object if it has a primitive type.
-   *
-   * @return the value of the represented field in object
-   * {@code obj}; primitive values are wrapped in an appropriate
-   * object before being returned
-   * @throws IllegalAccessException
-   * @throws IllegalArgumentException
-   */
-  Object get(Object instance) throws IllegalAccessException {
-    return field.get(instance);
-  }
-
-  /**
-   * This is exposed internally only for the removing synthetic fields from the JSON output.
-   *
-   * @return true if the field is synthetic; otherwise false
-   */
-  boolean isSynthetic() {
-    return field.isSynthetic();
+  @Override
+  public String toString() {
+    return field.toString();
   }
 }

gson/src/test/java/com/google/gson/FieldAttributesTest.java

@@ -17,12 +17,10 @@
 package com.google.gson;
 
 import com.google.gson.reflect.TypeToken;
-
-import junit.framework.TestCase;
-
 import java.lang.reflect.Modifier;
 import java.lang.reflect.Type;
 import java.util.List;
+import junit.framework.TestCase;
 
 /**
  * Unit tests for the {@link FieldAttributes} class.
@@ -62,10 +60,6 @@ public void testModifiers() throws Exception {
     assertTrue(fieldAttributes.hasModifier(Modifier.TRANSIENT));
   }
 
-  public void testIsSynthetic() throws Exception {
-    assertFalse(fieldAttributes.isSynthetic());
-  }
-
   public void testName() throws Exception {
     assertEquals("bar", fieldAttributes.getName());
   }