Nonsensical OUString null check

...ever since 523e10ac08 "INTEGRATION: CWS
scriptingf4: #i28384# - implement Macro Selector specification".  (That happened
to redundantly check for non-empty aScriptURL, too.)

Change-Id: I3fae859af4b0cc5d2b5f8a609c74b00b120694f3

sc/source/ui/dbgui/validate.cxx

@@ -846,7 +846,7 @@ IMPL_LINK_NOARG(ScTPValidationError, ClickSearchHdl, Button*, void)
     // choosing a script
     OUString aScriptURL = SfxApplication::ChooseScript();
 
-    if ( aScriptURL != nullptr && !aScriptURL.isEmpty() )
+    if ( !aScriptURL.isEmpty() )
     {
         m_pEdtTitle->SetText( aScriptURL );
     }