drm/amdgpu: remove duplicated include from mmhub_v1_0.c

Remove duplicated include.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c

@@ -31,7 +31,6 @@
 #include "vega10_enum.h"
 
 #include "soc15_common.h"
-#include "amdgpu_ras.h"
 
 #define mmDAGB0_CNTL_MISC2_RV 0x008f
 #define mmDAGB0_CNTL_MISC2_RV_BASE_IDX 0