removing guard against posting directories being removed.

formerly there were no posts for directories, but last winter
it changed, so now that there are directories we need to stop
filtering out such posts.

libsr3shim.c

@@ -799,10 +799,6 @@ int unlinkat(int dirfd, const char *path, int flags)
 	if (status == -1)
 		return status;
 
-	if (!stat_failed && S_ISDIR(sb.st_mode)) {
-		sr_shimdebug_msg(1, "unlinkat %s dirfd=%i skipping directory\n", path, dirfd);
-		return status;
-	}
 	if (dirfd == AT_FDCWD)
 		return (shimpost(path, status));