uapi/linux/quota.h: Do not include linux/errno.h

linux/errno.h is very sensitive to coordination with libc headers.
Nothing in linux/quota.h needs it, so this change allows using
this header in more contexts.
Signed-off-by: Florian Weimer <fweimer@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>

include/uapi/linux/quota.h

@@ -33,7 +33,6 @@
 #ifndef _UAPI_LINUX_QUOTA_
 #define _UAPI_LINUX_QUOTA_
 
-#include <linux/errno.h>
 #include <linux/types.h>
 
 #define __DQUOT_VERSION__	"dquot_6.6.0"