drm/amdgpu: drm/amdgpu: remove golden setting for gfx 11.5.0

No need to set GC golden settings in driver from gfx 11.5.0 onwards.

Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Lang Yu <lang.yu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>