drm/amdgpu: revert "Add autodump debugfs node for gpu reset v8"

drm/amdgpu: revert "Add autodump debugfs node for gpu reset v8"

This reverts commit 97e6f1a67eea7e49c17e6ff7d1f7a9dfa340ce4a.

Further discussion reveals that this feature is severely broken
and needs to be reverted ASAP.

GPU reset can never be delayed by userspace even for debugging or
otherwise we can run into in kernel deadlocks.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Nirmoy Das <nirmoy.das@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>