Drop the V1 plugin API compatibility code

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

src/Kaleidoscope-Model01-TestMode.cpp

@@ -10,20 +10,6 @@
 #define RELEASED 0
 
 
-
-#if KALEIDOSCOPE_ENABLE_V1_PLUGIN_API
-void TestMode_::begin(void) {
-  Kaleidoscope.useLoopHook(this->legacyLoopHook);
-}
-
-void TestMode_::legacyLoopHook(bool is_post_clear) {
-  if (is_post_clear)
-    return;
-
-  TestMode.beforeReportingState();
-}
-#endif
-
 kaleidoscope::EventHandlerResult TestMode_::beforeReportingState() {
   if (KeyboardHardware.isKeyswitchPressed(R0C0) &&
       KeyboardHardware.isKeyswitchPressed(R0C6) &&

src/Kaleidoscope-Model01-TestMode.h

@@ -14,16 +14,6 @@ class TestMode_ : public kaleidoscope::Plugin {
 
   kaleidoscope::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 void run_tests();
   static void test_leds();