drm/amdgpu: Remove redundant pmfw backdoor loading

PMFW is integrated into ifwi for gfx 12_1 adapter,
making PMFW backdoor loading unnecessary.

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Hawking Zhang 2025-05-26 15:49:42 +08:00 • committed by Alex Deucher
commit 8e0187aec6