Let's avoid adding new pointless comments

Surely *any* line of code that frees memory could have a comment "[avoid]
memory leak", lol. Such comments are pointless.

Change-Id: I4394db9423fa1470bbe7912519b6fd99ca91101c

sd/source/core/sdpage.cxx

@@ -785,7 +785,7 @@ void SdPage::CreateTitleAndLayout(sal_Bool bInit, sal_Bool bCreate )
                 }
                 else
                 {
-                    SdrObject::Free( pObj );  // memory leak i120050
+                    SdrObject::Free( pObj );
                 }
             }