drm/msm: remove a repeated including of <linux/debugfs.h>

Remove a repeated "#include <linux/debugfs.h>" in line 19 of the original
file.
Signed-off-by: Guo Zhengkui <guozhengkui@vivo.com>
Link: https://lore.kernel.org/r/20210729030140.99500-1-guozhengkui@vivo.comSigned-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drivers/gpu/drm/msm/disp/msm_disp_snapshot.h

@@ -16,7 +16,6 @@
 #include <linux/delay.h>
 #include <linux/spinlock.h>
 #include <linux/ktime.h>
-#include <linux/debugfs.h>
 #include <linux/uaccess.h>
 #include <linux/dma-buf.h>
 #include <linux/slab.h>