drm/amdgpu: Remove checking for atombios

This is a left over from radeon, amdgpu doesn't support any
non-atombios parts and amdgpu_device_init would bail if the
check for atombios failed anyway.

Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Signed-off-by: Nils Wallménius <nils.wallmenius@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c
index 91d3673..f273999 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_i2c.c
@@ -231,8 +231,7 @@ void amdgpu_i2c_init(struct amdgpu_device *adev)
 	if (amdgpu_hw_i2c)
 		DRM_INFO("hw_i2c forced on, you may experience display detection problems!\n");
 
-	if (adev->is_atom_bios)
-		amdgpu_atombios_i2c_init(adev);
+	amdgpu_atombios_i2c_init(adev);
 }
 
 /* remove all the buses */