Add AZ_BUDGET_DEFINE/AZ_BUDGET_DECLARE and remove driller

NOTE: The memory driller is still intact for now to avoid needing to
modify allocators, but the frame/cpu portions of driller and the
standalone executable are now gone.

Signed-off-by: Jeremy Ong <jcong@amazon.com>

Code/Editor/IEditorImpl.cpp

@@ -405,8 +405,6 @@ void CEditorImpl::Update()
     // Make sure this is not called recursively
     m_bUpdates = false;
 
-    FUNCTION_PROFILER(GetSystem(), PROFILE_EDITOR);
-
     //@FIXME: Restore this latter.
     //if (GetGameEngine() && GetGameEngine()->IsLevelLoaded())
     {