Preapre codebase for FileRequest compiletime improvements (#6192)

* Preapre codebase for FileRequest compiletime improvements

This is preparing grounds for the next PR that will contain the 'meat'
of the changes.

Signed-off-by: nemerle <96597+nemerle@users.noreply.github.com>

* Remove spurious newline.

Signed-off-by: nemerle <96597+nemerle@users.noreply.github.com>

Code/Editor/GameEngine.cpp

@@ -442,7 +442,7 @@ AZ::Outcome<void, AZStd::string> CGameEngine::Init(
     REGISTER_COMMAND("quit", CGameEngine::HandleQuitRequest, VF_RESTRICTEDMODE, "Quit/Shutdown the engine");
 
     EBUS_EVENT(CrySystemEventBus, OnCryEditorInitialized);
-    
+
     return AZ::Success();
 }
 
@@ -465,7 +465,7 @@ void CGameEngine::SetLevelPath(const QString& path)
     const char* oldExtension = EditorUtils::LevelFile::GetOldCryFileExtension();
     const char* defaultExtension = EditorUtils::LevelFile::GetDefaultFileExtension();
 
-    // Store off if 
+    // Store off if
     if (QFileInfo(path + oldExtension).exists())
     {
         m_levelExtension = oldExtension;