drm/amdgpu/nv: remove some dead code

navi never supported the pci config reset.  Neither did
vega.

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2020-05-28 17:23:18 -04:00
commit 337b72444e