recovery: drop unused recovery_exit

src/box/recovery.cc

@@ -169,14 +169,6 @@ recovery_delete(struct recovery *r)
 	free(r);
 }
 
-void
-recovery_exit(struct recovery *r)
-{
-	/* Avoid fibers, there is no event loop */
-	r->watcher = NULL;
-	recovery_delete(r);
-}
-
 /**
  * Read all rows in a file starting from the last position.
  * Advance the position. If end of file is reached,

src/box/recovery.h

@@ -68,10 +68,6 @@ recovery_new(const char *wal_dirname, bool force_recovery,
 void
 recovery_delete(struct recovery *r);
 
-/* to be called at exit */
-void
-recovery_exit(struct recovery *r);
-
 void
 recovery_follow_local(struct recovery *r, struct xstream *stream,
 		      const char *name, ev_tstamp wal_dir_rescan_delay);