Revert javadoc comment test.

Author: The-inside-man

core-api/src/test/java/com/optimizely/ab/OptimizelyTest.java

@@ -2708,7 +2708,7 @@ public void trackEventWithListenerNullAttributes() throws Exception {
     //======== Feature Accessor Tests ========//
 
     /**
-     * Verify {@link Optimizely#getFeatureVariableValueForType(String, String, String, Map, String)}
+     * Verify {@link Optimizely#getFeatureVariableValueForType(String, String, String, Map, FeatureVariable.VariableType)}
      * returns null and logs a message
      * when it is called with a feature key that has no corresponding feature in the datafile.
      */