Revert "mesa: only update _MaxElement when we actually need it"

This reverts commit 0de5a21470.

I was wrong, we use it in the vbo module too.
This fixes a performance regression in Nexuiz.

src/mesa/main/state.c

@@ -562,10 +562,8 @@ _mesa_update_state_locked( struct gl_context *ctx )
       new_prog_state |= update_program( ctx );
    }
 
-   if (ctx->Const.CheckArrayBounds &&
-       (new_state & (_NEW_ARRAY | _NEW_PROGRAM | _NEW_BUFFER_OBJECT))) {
+   if (new_state & (_NEW_ARRAY | _NEW_PROGRAM | _NEW_BUFFER_OBJECT))
       _mesa_update_array_object_max_element(ctx, ctx->Array.ArrayObj);
-   }
 
  out:
    new_prog_state |= update_program_constants(ctx);