Revert "fdo#74064 The filename gets properly highlighted in the Save As dialog."

This reverts commit 55eb8669, which caused a
regression fdo#76466.

vcl/unx/gtk/fpicker/SalGtkFilePicker.cxx

@@ -1345,13 +1345,9 @@ void SAL_CALL SalGtkFilePicker::setValue( sal_Int16 nControlId, sal_Int16 nContr
         OSL_TRACE("enable unknown control %d", nControlId);
     else if( tType == GTK_TYPE_TOGGLE_BUTTON )
     {
-        // fdo#74064, not activating the auto_extension checkbox so that proper filename is highlighted.
-        if(nControlId != ExtendedFilePickerElementIds::CHECKBOX_AUTOEXTENSION)
-        {
-            bool bChecked = false;
-            rValue >>= bChecked;
-            gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON( pWidget ), bChecked );
-        }
+        bool bChecked = false;
+        rValue >>= bChecked;
+        gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON( pWidget ), bChecked );
     }
     else if( tType == GTK_TYPE_COMBO_BOX )
         HandleSetListValue(GTK_COMBO_BOX(pWidget), nControlAction, rValue);