8011972: Field can be erroneously marked as contended when @Contended annotation isn't present

Reviewed-by: kvn, kmo, shade

src/share/vm/classfile/classFileParser.cpp

@@ -1723,9 +1723,6 @@ void ClassFileParser::parse_annotations(u1* buffer, int limit,
       } else {
         coll->set_contended_group(0); // default contended group
       }
-      coll->set_contended(true);
-    } else {
-      coll->set_contended(false);
     }
   }
 }

src/share/vm/classfile/classFileParser.hpp

@@ -150,7 +150,6 @@ class ClassFileParser VALUE_OBJ_CLASS_SPEC {
     void set_contended_group(u2 group) { _contended_group = group; }
     u2 contended_group() { return _contended_group; }
 
-    void set_contended(bool contended) { set_annotation(_sun_misc_Contended); }
     bool is_contended() { return has_annotation(_sun_misc_Contended); }
   };