NOISSUE set groups for instances by not setting groups for instances

So simple. Better in every way.

api/logic/minecraft/legacy/LegacyInstance.h

@@ -34,7 +34,6 @@ public:
 
     explicit LegacyInstance(SettingsObjectPtr globalSettings, SettingsObjectPtr settings, const QString &rootDir);
 
-    virtual void init() override {}
     virtual void saveNow() override {}
 
     /// Path to the instance's minecraft.jar

api/logic/minecraft/legacy/LegacyUpgradeTask.cpp

@@ -67,7 +67,6 @@ void LegacyUpgradeTask::copyFinished()
     {
         MinecraftInstance inst(m_globalSettings, instanceSettings, m_stagingPath);
         inst.setName(m_instName);
-        inst.init();
 
         QString preferredVersionNumber = decideVersion(legacyInst->currentVersionId(), legacyInst->intendedVersionId());
         if(preferredVersionNumber.isNull())