remove unnecessary use of Reference constructor in throw

Convert code like this:
  throw IOException("xx",
     Reference< XInterface >(static_cast<OWeakObject*>(this)) );
to this:
  throw IOException("xx",
     static_cast<OWeakObject*>(this) );

Change-Id: Ife9f645f0f1810a8e80219126193015502c43dbb

forms/source/misc/InterfaceContainer.cxx

@@ -216,7 +216,7 @@ void OInterfaceContainer::clonedFrom( const OInterfaceContainer& _cloneSource )
     catch( const Exception& )
     {
         throw WrappedTargetException(
-            OUString( "Could not clone the given interface hierarchy." ),
+            "Could not clone the given interface hierarchy.",
             static_cast< XIndexContainer* >( const_cast< OInterfaceContainer* >( &_cloneSource ) ),
             ::cppu::getCaughtException()
         );