drm: Don't include drm_legacy.h in drm_lease.c

DRM leases do not use DRM legacy code. Remove the rsp include
statement.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210516185937.5644-4-tzimmermann@suse.de

drivers/gpu/drm/drm_lease.c

@@ -14,7 +14,6 @@
 
 #include "drm_crtc_internal.h"
 #include "drm_internal.h"
-#include "drm_legacy.h"
 
 #define drm_for_each_lessee(lessee, lessor) \
 	list_for_each_entry((lessee), &(lessor)->lessees, lessee_list)