Remove dead engine API.

src/box/engine.cc

@@ -47,12 +47,6 @@ EngineFactory::EngineFactory(const char *engine_name)
 void EngineFactory::init()
 {}
 
-void EngineFactory::recover()
-{}
-
-void EngineFactory::shutdown()
-{}
-
 void EngineFactory::begin(struct txn*, struct space*)
 {}
 
@@ -97,7 +91,6 @@ void engine_shutdown()
 {
 	EngineFactory *e, *tmp;
 	rlist_foreach_entry_safe(e, &engines, link, tmp) {
-		e->shutdown();
 		delete e;
 	}
 }

src/box/engine.h

@@ -117,10 +117,6 @@ class EngineFactory: public Object {
 	virtual void init();
 	/** Create a new engine instance for a space. */
 	virtual Engine *open() = 0;
-	/** Called at server shutdown. */
-	virtual void shutdown();
-	/** Recover engine, called once at startup. */
-	virtual void recover();
 	/* Inform engine about a recovery stage change. */
 	virtual void recoveryEvent(enum engine_recovery_event);
 	/**
@@ -144,6 +140,7 @@ class EngineFactory: public Object {
 	virtual void commit(struct txn*);
 	virtual void rollback(struct txn*);
 	virtual void set_snapshot_lsn(int64_t lsn) = 0;
+
 	/**
 	 * Engine snapshotting support.
 	 */