drm/amdgpu: remove unnecessary header include

amdgpu.h is included in kfd_priv.h
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: John Clements <John.Clements@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdkfd/kfd_int_process_v9.c

@@ -25,7 +25,6 @@
 #include "soc15_int.h"
 #include "kfd_device_queue_manager.h"
 #include "kfd_smi_events.h"
-#include "amdgpu.h"
 
 enum SQ_INTERRUPT_WORD_ENCODING {
 	SQ_INTERRUPT_WORD_ENCODING_AUTO = 0x0,