client_t.c: fix clang warning

Fix:
client_t.c:601:25: warning: address of array 'client->client_uid' will always evaluate to 'true' [-Wpointer-bool-conversion]
  601 |             if (client->client_uid) {
      |             ~~  ~~~~~~~~^~~~~~~~~~

Signed-off-by: Yaniv Kaul <[email protected]>

Author: mykaul

libglusterfs/src/client_t.c

@@ -598,10 +598,8 @@ gf_client_dump_fdtables(xlator_t *this)
                 clienttable->cliententries[count].next_free)
                 continue;
             client = clienttable->cliententries[count].client;
-            if (client->client_uid) {
-                gf_proc_dump_build_key(key, "conn", "%d.id", count);
-                gf_proc_dump_write(key, "%s", client->client_uid);
-            }
+            gf_proc_dump_build_key(key, "conn", "%d.id", count);
+            gf_proc_dump_write(key, "%s", client->client_uid);
 
             if (client->subdir_mount) {
                 gf_proc_dump_build_key(key, "conn", "%d.subdir", count);