Drop the V1 plugin API compatibility code

Signed-off-by: Gergely Nagy <algernon@keyboard.io>

src/Kaleidoscope/MagicCombo.cpp

@@ -53,19 +53,6 @@ EventHandlerResult MagicCombo::beforeReportingState() {
   return EventHandlerResult::OK;
 }
 
-// Legacy V1 API
-#if KALEIDOSCOPE_ENABLE_V1_PLUGIN_API
-void MagicCombo::begin() {
-  Kaleidoscope.useLoopHook(legacyLoopHook);
-}
-
-void MagicCombo::legacyLoopHook(bool is_post_clear) {
-  if (is_post_clear)
-    return;
-  ::MagicCombo.beforeReportingState();
-}
-#endif
-
 };
 
 kaleidoscope::MagicCombo MagicCombo;

src/Kaleidoscope/MagicCombo.h

@@ -63,16 +63,6 @@ class MagicCombo : public kaleidoscope::Plugin {
 
   EventHandlerResult beforeReportingState();
 
-#if KALEIDOSCOPE_ENABLE_V1_PLUGIN_API
-  kaleidoscope::EventHandlerResult onSetup() {
-    return kaleidoscope::EventHandlerResult::OK;
-  }
-
- protected:
-  void begin();
-  static void legacyLoopHook(bool is_post_clear);
-#endif
-
  private:
   static uint32_t end_time_;
 };