Remove song import global automation (#5229)

Co-authored-by: Hyunjin Song <tteu.ingog@gmail.com>

include/DataFile.h

@@ -134,6 +134,7 @@ private:
 	void upgrade_fixCMTDelays();
 	void upgrade_fixBassLoopsTypo();
 	void findProblematicLadspaPlugins();
+	void upgrade_noHiddenAutomationTracks();
 
 	// List of all upgrade methods
 	static const std::vector<UpgradeMethod> UPGRADE_METHODS;