MAINT-4325 FIXED [BEAR] Fix to "Reset Filters" causes empty folders to appear...

MAINT-4325 FIXED [BEAR] Fix to "Reset Filters" causes empty folders to appear in Recent tab of Inventory
Clean up - reverted fragment from MAINT-1192, it is no longer needed.

indra/newview/llinventorypanel.cpp

@@ -1492,8 +1492,6 @@ class LLInventoryRecentItemsPanel : public LLInventoryPanel
 		getFilter().setFilterCategoryTypes(getFilter().getFilterCategoryTypes() | (1ULL << LLFolderType::FT_INBOX));
 	}
 
-	/*virtual*/ void onVisibilityChange(BOOL new_visibility);
-
 protected:
 	LLInventoryRecentItemsPanel (const Params&);
 	friend class LLUICtrlFactory;
@@ -1506,13 +1504,6 @@ LLInventoryRecentItemsPanel::LLInventoryRecentItemsPanel( const Params& params)
 	mInvFVBridgeBuilder = &RECENT_ITEMS_BUILDER;
 }
 
-void LLInventoryRecentItemsPanel::onVisibilityChange(BOOL new_visibility)
-{
-	if(new_visibility)
-	{
-		getFilter().setModified();
-	}
-}
 namespace LLInitParam
 {
 	void TypeValues<LLFolderType::EType>::declareValues()