Revert wrong fix for nolock locking missing fs_unlock

Patch was wrond and introduced recursive lock_vol
Reverting it.

daemons/clvmd/clvmd-command.c

@@ -217,6 +217,7 @@ static int lock_vg(struct local_client *client)
 	if (lkid == 0)
 	    return EINVAL;
 
+	lvm_do_fs_unlock(); /* Wait for devices */
 	status = sync_unlock(lockname, lkid);
 	if (status)
 	    status = errno;

lib/locking/file_locking.c

@@ -215,6 +215,7 @@ static int _lock_file(const char *file, uint32_t flags)
 		state = 'W';
 		break;
 	case LCK_UNLOCK:
+		fs_unlock(); /* Wait until devices are available */
 		return _release_lock(file, 1);
 	default:
 		log_error("Unrecognised lock type: %d", flags & LCK_TYPE_MASK);

lib/locking/locking.c

@@ -442,10 +442,6 @@ int lock_vol(struct cmd_context *cmd, const char *vol, uint32_t flags)
 		/* If LVM1 driver knows about the VG, it can't be accessed. */
 		if (!check_lvm1_vg_inactive(cmd, vol))
 			return_0;
-
-		/* Before unlocking VG wait until devices are available. */
-		if ((flags & LCK_TYPE_MASK) == LCK_UNLOCK)
-			sync_local_dev_names(cmd);
 		break;
 	case LCK_LV:
 		/* All LV locks are non-blocking. */