Cleanup Watch even more by removing unused functions

WatchAppExtension/ComplicationController.swift

@@ -15,15 +15,7 @@ class ComplicationController: NSObject, CLKComplicationDataSource {
 
     func getSupportedTimeTravelDirections(for complication: CLKComplication, withHandler
         handler: @escaping (CLKComplicationTimeTravelDirections) -> Void) {
-        handler([.backward, .forward])
-    }
-
-    func getTimelineStartDate(for complication: CLKComplication, withHandler handler: @escaping (Date?) -> Void) {
-        handler(nil)
-    }
-
-    func getTimelineEndDate(for complication: CLKComplication, withHandler handler: @escaping (Date?) -> Void) {
-        handler(nil)
+        handler([])
     }
 
     func getPrivacyBehavior(for complication: CLKComplication,
@@ -57,18 +49,6 @@ class ComplicationController: NSObject, CLKComplicationDataSource {
         }
     }
 
-    func getTimelineEntries(for complication: CLKComplication, before date: Date, limit: Int,
-                            withHandler handler: @escaping ([CLKComplicationTimelineEntry]?) -> Void) {
-        // Call the handler with the timeline entries prior to the given date
-        handler(nil)
-    }
-
-    func getTimelineEntries(for complication: CLKComplication, after date: Date, limit: Int,
-                            withHandler handler: @escaping ([CLKComplicationTimelineEntry]?) -> Void) {
-        // Call the handler with the timeline entries after to the given date
-        handler(nil)
-    }
-
     // MARK: - Placeholder Templates
 
     func getLocalizableSampleTemplate(for complication: CLKComplication,