drm/amd: Drop "amdgpu kernel modesetting enabled" message

drm/amd: Drop "amdgpu kernel modesetting enabled" message

The behavior for amdgpu was changed with commit e00e5c223878
("drm/amdgpu: adjust drm_firmware_drivers_only() handling") to
potentially allow loading even if nomodeset was set, so the
message is no longer accurate.

Just drop it to avoid confusion.

Fixes: e00e5c223878 ("drm/amdgpu: adjust drm_firmware_drivers_only() handling")
Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>