drm: kirin: Remove unreachable return

The 'return 0' in kirin_drm_platform_probe() is unreachable
code, so remove it.

Cc: Rongrong Zou <zourongrong@gmail.com>
Cc: Xinliang Liu <z.liuxinliang@hisilicon.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel <dri-devel@lists.freedesktop.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Xinliang Liu <z.liuxinliang@hisilicon.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Suggested by: Xu YiPing <xuyiping@hisilicon.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190820230626.23253-4-john.stultz@linaro.org

drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c

@@ -208,8 +208,6 @@ static int kirin_drm_platform_probe(struct platform_device *pdev)
 	of_node_put(remote);
 
 	return component_master_add_with_match(dev, &kirin_drm_ops, match);
-
-	return 0;
 }
 
 static int kirin_drm_platform_remove(struct platform_device *pdev)