drm/amd: remove inclusion of non-existing scheduler directory

The scheduler directory was removed via commit 1b1f42d8 ("drm: move amd_gpu_scheduler into common location")
Remove it from include path.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/Makefile

@@ -30,7 +30,6 @@ FULL_AMD_DISPLAY_PATH = $(FULL_AMD_PATH)/$(DISPLAY_FOLDER_NAME)
 ccflags-y := -I$(FULL_AMD_PATH)/include/asic_reg \
 	-I$(FULL_AMD_PATH)/include \
 	-I$(FULL_AMD_PATH)/amdgpu \
-	-I$(FULL_AMD_PATH)/scheduler \
 	-I$(FULL_AMD_PATH)/powerplay/inc \
 	-I$(FULL_AMD_PATH)/acp/include \
 	-I$(FULL_AMD_DISPLAY_PATH) \