stoc: remove extra braces

Change-Id: I3b6b77ba58832d7bfc350eeb5e589513b716a081

stoc/source/proxy_factory/proxyfac.cxx

@@ -432,7 +432,6 @@ Reference< XInterface > SAL_CALL proxyfac_create(
     SAL_UNUSED_PARAMETER Reference< XComponentContext > const & )
 {
     Reference< XInterface > xRet;
-    {
     static osl::Mutex s_mutex;
     // note: don't use ::osl::Mutex::getGlobalMutex() here, it deadlocks
     //       with getImplHelperInitMutex()
@@ -445,7 +444,6 @@ Reference< XInterface > SAL_CALL proxyfac_create(
         xRet = static_cast< ::cppu::OWeakObject * >(new FactoryImpl);
         rwInstance = xRet;
     }
-    }
     return xRet;
 }