remove TDB::commit

src/Context.cpp

@@ -735,7 +735,6 @@ int Context::run ()
   {
     hooks.onLaunch ();
     rc = dispatch (output);
-    tdb2.commit ();           // Harmless if called when nothing changed.
     hooks.onExit ();          // No chance to update data.
 
     timer_total.stop ();

src/TDB2.cpp

@@ -169,12 +169,6 @@ void TDB2::modify (Task& task)
   }
 }
 
-////////////////////////////////////////////////////////////////////////////////
-void TDB2::commit ()
-{
-  // does nothing; changes are committed as they are made
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 const tc::WorkingSet &TDB2::working_set ()
 {

src/TDB2.h

@@ -49,7 +49,6 @@ public:
   void open_replica (const std::string&, bool create_if_missing);
   void add (Task&);
   void modify (Task&);
-  void commit ();
   void get_changes (std::vector <Task>&);
   void revert ();
   void gc ();