memfd: drop memfd_get_name() as it is unused

src/shared/memfd.c

@@ -172,50 +172,3 @@ int memfd_new_and_map(const char *name, size_t sz, void **p) {
 
         return r;
 }
-
-int memfd_get_name(int fd, char **name) {
-        char path[sizeof("/proc/self/fd/") + DECIMAL_STR_MAX(int)], buf[FILENAME_MAX+1], *e;
-        const char *delim, *end;
-        _cleanup_free_ char *n = NULL;
-        ssize_t k;
-
-        assert(fd >= 0);
-        assert(name);
-
-        sprintf(path, "/proc/self/fd/%i", fd);
-
-        k = readlink(path, buf, sizeof(buf));
-        if (k < 0)
-                return -errno;
-
-        if ((size_t) k >= sizeof(buf))
-                return -E2BIG;
-
-        buf[k] = 0;
-
-        delim = strstr(buf, ":[");
-        if (!delim)
-                return -EIO;
-
-        delim = strchr(delim + 2, ':');
-        if (!delim)
-                return -EIO;
-
-        delim++;
-
-        end = strchr(delim, ']');
-        if (!end)
-                return -EIO;
-
-        n = strndup(delim, end - delim);
-        if (!n)
-                return -ENOMEM;
-
-        e = utf8_escape_invalid(n);
-        if (!e)
-                return -ENOMEM;
-
-        *name = e;
-
-        return 0;
-}

src/shared/memfd.h

@@ -38,5 +38,3 @@ int memfd_get_sealed(int fd);
 
 int memfd_get_size(int fd, uint64_t *sz);
 int memfd_set_size(int fd, uint64_t sz);
-
-int memfd_get_name(int fd, char **name);