THRIFT-2673 PHP: generated Service_method_result code should not have validators

Patch: Stig Bakken
diff --git a/lib/php/test/TestValidators.thrift b/lib/php/test/TestValidators.thrift
index f994a9e..d0ed9cc 100644
--- a/lib/php/test/TestValidators.thrift
+++ b/lib/php/test/TestValidators.thrift
@@ -26,3 +26,6 @@
   2: string bb; 
 } 
 
+service TestService {
+    void test() throws(1: ThriftTest.Xception xception);
+}