drm/amdgpu: Revert programming of CP_PSP_XCP_CTL

Programming of this register is taken care by PSP. Incorrect programming
causes CP not to detect its XCC.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reported-by: Alexander Turek <Alexander.Turek@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c

@@ -1055,9 +1055,6 @@ static void gfx_v9_4_3_program_xcc_id(struct amdgpu_device *adev, int xcc_id)
 		tmp = tmp | (adev->gfx.num_xcc_per_xcp << REG_FIELD_SHIFT(CP_HYP_XCP_CTL, NUM_XCC_IN_XCP));
 		WREG32_SOC15(GC, GET_INST(GC, xcc_id), regCP_HYP_XCP_CTL, tmp);
 
-		tmp = xcc_id << REG_FIELD_SHIFT(CP_PSP_XCP_CTL, PHYSICAL_XCC_ID);
-		tmp = tmp | (xcc_id << REG_FIELD_SHIFT(CP_PSP_XCP_CTL, XCC_DIE_ID));
-		WREG32_SOC15(GC, GET_INST(GC, xcc_id), regCP_PSP_XCP_CTL, tmp);
 		break;
 	default:
 		break;