NO-OP: replace `save_state("")` with `save_state()`

libs/ardour/ardour/session.h

@@ -563,7 +563,7 @@ public:
 	 * @param only_used_assets skip Sources that are not used, mainly useful with \p for_archive
 	 * @return zero on success
 	 */
-	int save_state (std::string snapshot_name,
+	int save_state (std::string snapshot_name = "",
 	                bool pending = false,
 	                bool switch_to_snapshot = false,
 	                bool template_only = false,

libs/ardour/session.cc

@@ -3119,7 +3119,7 @@ Session::add_routes (RouteList& new_routes, bool input_auto_connect, bool output
 	set_dirty();
 
 	if (save) {
-		save_state (_current_snapshot_name);
+		save_state ();
 	}
 
 	update_route_record_state ();
@@ -4375,7 +4375,11 @@ Session::remove_last_capture ()
 
 	destroy_sources (srcs);
 
-	save_state (_current_snapshot_name);
+	/* save state so we don't end up with a session file
+	 * referring to non-existent sources.
+	 */
+
+	save_state ();
 
 	return 0;
 }
@@ -4472,7 +4476,7 @@ Session::remove_source (boost::weak_ptr<Source> src)
 		 * referring to non-existent sources.
 		 */
 
-		save_state (_current_snapshot_name);
+		save_state ();
 	}
 }
 

libs/ardour/session_state.cc

@@ -3690,7 +3690,7 @@ Session::cleanup_sources (CleanupReport& rep)
 	 * referring to non-existent sources.
 	 */
 
-	save_state ("");
+	save_state ();
 	ret = 0;
 
 out:
@@ -4764,7 +4764,7 @@ Session::bring_all_sources_into_session (boost::function<void(uint32_t,uint32_t,
 		}
 	}
 
-	save_state ("", false, false);
+	save_state ();
 
 	return ret;
 }

libs/ardour/track.cc

@@ -444,7 +444,7 @@ Track::set_name (const string& str)
 	/* save state so that the statefile fully reflects any filename changes */
 
 	if ((ret = Route::set_name (str)) == 0) {
-		_session.save_state ("");
+		_session.save_state ();
 	}
 
 	return ret;