Drop the V1 plugin API compatibility code

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

src/Kaleidoscope/TypingBreaks.cpp

@@ -190,21 +190,6 @@ bool TypingBreaks::focusHook(const char *command) {
   return true;
 }
 
-// Legacy V1 API
-
-#if KALEIDOSCOPE_ENABLE_V1_PLUGIN_API
-void TypingBreaks::begin() {
-  Kaleidoscope.useEventHandlerHook(legacyEventHandler);
-}
-
-Key TypingBreaks::legacyEventHandler(Key mapped_key, byte row, byte col, uint8_t key_state) {
-  EventHandlerResult r = ::TypingBreaks.onKeyswitchEvent(mapped_key, row, col, key_state);
-  if (r == EventHandlerResult::OK)
-    return mapped_key;
-  return Key_NoKey;
-}
-#endif
-
 }
 
 kaleidoscope::TypingBreaks TypingBreaks;

src/Kaleidoscope/TypingBreaks.h

@@ -41,16 +41,6 @@ class TypingBreaks : public kaleidoscope::Plugin {
 
   EventHandlerResult onKeyswitchEvent(Key &mapped_key, byte row, byte col, uint8_t key_state);
 
-#if KALEIDOSCOPE_ENABLE_V1_PLUGIN_API
-  kaleidoscope::EventHandlerResult onSetup() {
-    return kaleidoscope::EventHandlerResult::OK;
-  }
-
- protected:
-  void begin();
-  static Key legacyEventHandler(Key mapped_key, byte row, byte col, uint8_t key_state);
-#endif
-
  private:
   static uint32_t session_start_time_;
   static uint32_t lock_start_time_;