PATH-802: fixed check for different grid in chat SLURLS

indra/newview/llurldispatcher.cpp

@@ -205,8 +205,8 @@ void LLURLDispatcherImpl::regionHandleCallback(U64 region_handle, const LLSLURL&
 {
 
   // we can't teleport cross grid at this point
-	if((!LLGridManager::getInstance()->isSystemGrid(slurl.getGrid()) || !LLGridManager::getInstance()->isSystemGrid()) &&
-	   (slurl.getGrid() != LLGridManager::getInstance()->getGrid()))
+	if(   LLGridManager::getInstance()->getGrid(slurl.getGrid())
+	   != LLGridManager::getInstance()->getGrid())
 	{
 		LLSD args;
 		args["SLURL"] = slurl.getLocationString();

indra/newview/llviewernetwork.h

@@ -198,9 +198,6 @@ class LLGridManager : public LLSingleton<LLGridManager>
 	/// Add a grid to the list of grids
 	void addGrid(LLSD& grid_info);	
 
-	/// find the LLSD definition for a given grid
-	void getGridInfo(const std::string& grid, LLSD &grid_info);
-	
 	void updateIsInProductionGrid();
 
 	// helper function for adding the hard coded grids