Revert "drm/amdgpu: fix modprobe failure of the secondary GPU when GDDR6 training enabled(V5)"

This reverts commit 9e441478.

The patch will be replaced with a better solution, revert it.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Tianci.Yin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>