removing some dead code, commented code referring old types, static AZStd::strings

Signed-off-by: Esteban Papp <81431996+amznestebanpapp@users.noreply.github.com>

Code/Editor/Util/PathUtil.cpp

@@ -245,8 +245,8 @@ namespace Path
     /// Get the data folder
     AZStd::string GetEditingGameDataFolder()
     {
-        static AZStd::string s_currentModName;
-        // query the editor root.  The bus exists in case we want tools to be able to override this.
+        // Define here the mod name
+        static AZStd::fixed_string<AZ::IO::MaxPathLength> s_currentModName;
 
         if (s_currentModName.empty())
         {