1.0.2 - remove useless method in absrtact class

generates a fatal error on PHP <= 5.3,
in any case, it will force inherited class to override it as it comes from the StructArrayInterface

Author: mikaelcom

src/AbstractStructArrayBase.php

@@ -19,12 +19,6 @@ abstract class AbstractStructArrayBase extends AbstractStructBase implements Str
      * @var int
      */
     protected $internArrayOffset;
-    /**
-     * Method returning alone attribute name when class is *array* type
-     * This method has been overridden in real-array struct class
-     * @return string
-     */
-    abstract public function getAttributeName();
     /**
      * Method alias to count
      * @uses ApiWsdlClass::count()