Remove unused method.

Clocker/AppDelegate.swift

@@ -53,9 +53,6 @@ open class AppDelegate: NSObject, NSApplicationDelegate {
 
         AppDefaults.initialize()
 
-        // For users, still on the old timezones, only migrate timezonezes once setClass has been called
-        migrateOverridenTimezones()
-
         // Check if we can show the onboarding flow!
         showOnboardingFlowIfEligible()
 
@@ -68,28 +65,6 @@ open class AppDelegate: NSObject, NSApplicationDelegate {
         #endif
     }
 
-    private func migrateOverridenTimezones() {
-        let defaults = UserDefaults.standard
-        if let shortCircuit = defaults.object(forKey: "MigrateIndividualTimezoneFormat") as? Bool, shortCircuit == true {
-            return
-        }
-
-        let timezones = DataStore.shared().timezones()
-        var migratedTimezones: [Data] = []
-
-        for encodedTimezone in timezones {
-            if let timezoneObject = TimezoneData.customObject(from: encodedTimezone) {
-                timezoneObject.setShouldOverrideGlobalTimeFormat(0)
-                migratedTimezones.append(NSKeyedArchiver.archivedData(withRootObject: timezoneObject))
-            }
-        }
-
-        if migratedTimezones.count > 0 {
-            defaults.set(migratedTimezones, forKey: CLDefaultPreferenceKey)
-            defaults.set(true, forKey: "MigrateIndividualTimezoneFormat")
-        }
-    }
-
     public func applicationDockMenu(_: NSApplication) -> NSMenu? {
         let menu = NSMenu(title: "Quick Access")