drm/amd/display: remove repeated includes

Remove a repeated "#include <drm/drm_print.h>"
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Guo Zhengkui <guozhengkui@vivo.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/os_types.h

@@ -39,8 +39,6 @@
 #include <drm/display/drm_dp_helper.h>
 #include <drm/drm_print.h>
 
-#include <drm/drm_print.h>
-
 #include "cgs_common.h"
 
 #if defined(__BIG_ENDIAN) && !defined(BIGENDIAN_CPU)