drm/msm/dpu: Remove unreachable code

The return statement follows another return statement, so will never be
reached.
Signed-off-by: Drew Davenport <ddavenport@chromium.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c

@@ -816,6 +816,4 @@ struct dpu_encoder_phys *dpu_encoder_phys_cmd_init(
 	DPU_DEBUG_CMDENC(cmd_enc, "created\n");
 
 	return phys_enc;
-
-	return ERR_PTR(ret);
 }