Ambient Occlusion decals ignore Receive Decals setting on meshes

Adding an ambient occlusion decal material to a decal affects objects with "Receives Decal" disabled.

Tested in: 4.23.1 CL#9631420 4.25 CL#11341939

1) add an object in a scene

2) add a decal to the scene that intersects with the added object

3) set the decal to use a material that is configure to be an ambient occlusion decal material

4) see that the decal is adding occlusion to the intersection of the decal with the object

5) Disable "Receives Decal" on the object

Result: The decal is still adding occlusion to the object

Expected: No occlusion on the object