THRIFT-879. java: Remove @Override from TUnion.clear

Removes the unnecessary annotation.

Patch: Dave Engberg

git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@990931 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/lib/java/src/org/apache/thrift/TUnion.java b/lib/java/src/org/apache/thrift/TUnion.java
index 32156c1..2af891b 100644
--- a/lib/java/src/org/apache/thrift/TUnion.java
+++ b/lib/java/src/org/apache/thrift/TUnion.java
@@ -227,7 +227,6 @@
     return sb.toString();
   }
 
-  @Override
   public final void clear() {
     this.setField_ = null;
     this.value_ = null;