drm/amd/display: fix if == else warning

Fix the following coccicheck warning:

drivers/gpu/drm/amd/display/dc/dcn201/dcn201_hwseq.c:98:8-10:
WARNING: possible condition with no effect (if == else)
Reviewed-by: Zhan Liu <zhan.liu@amd.com>
Signed-off-by: Guo Zhengkui <guozhengkui@vivo.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn201/dcn201_hwseq.c

@@ -95,8 +95,6 @@ static void gpu_addr_to_uma(struct dce_hwseq *hwseq,
 	} else if (hwseq->fb_offset.quad_part <= addr->quad_part &&
 			addr->quad_part <= hwseq->uma_top.quad_part) {
 		is_in_uma = true;
-	} else if (addr->quad_part == 0) {
-		is_in_uma = false;
 	} else {
 		is_in_uma = false;
 	}