drm/amd/display: Drop unnecessary header file

powerplay implement hwmgr_function table for all supported asics in
order to conceal the asic's detail infomation. so no need to include
the smu10_hwmgr.h.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c

@@ -34,7 +34,6 @@
 #include "amdgpu_pm.h"
 #include "dm_pp_smu.h"
 #include "../../powerplay/inc/hwmgr.h"
-#include "../../powerplay/hwmgr/smu10_hwmgr.h"
 
 
 bool dm_pp_apply_display_requirements(