Remove onKeyPress() and unused getWindowsEvent()

* deleted onKeyPress() due to PR https://github.com/EdgeTX/edgetx/pull/2201

* deleted reference to getWindowEvent(), no longer used due to PR https://github.com/EdgeTX/edgetx/pull/2201

* cosmetics - remove commented out getWindowsEvent()

radio/src/thirdparty/libopenui/src/checkbox.cpp

@@ -26,7 +26,6 @@ static void checkbox_event_handler(lv_event_t* e)
   lv_obj_t* target = lv_event_get_target(e);
   CheckBox* cb = (CheckBox*)lv_obj_get_user_data(target);
 
-  onKeyPress();
   if (cb) cb->setValue(lv_obj_get_state(target) & LV_STATE_CHECKED);
 }
 

radio/src/thirdparty/libopenui/src/choice.cpp

@@ -201,7 +201,6 @@ void Choice::setValue(int val)
 
 void Choice::onClicked()
 {
-  onKeyPress();
   openMenu();
 }
 

radio/src/thirdparty/libopenui/src/filechoice.cpp

@@ -134,6 +134,5 @@ bool FileChoice::openMenu()
 
 void FileChoice::onClicked()
 {
-  onKeyPress();
   openMenu();
 }

radio/src/thirdparty/libopenui/src/libopenui_depends.h

@@ -27,10 +27,8 @@ uint16_t* lcdGetScratchBuffer();
 void DMACopyBitmap(uint16_t * dest, uint16_t destw, uint16_t desth, uint16_t x, uint16_t y, const uint16_t * src, uint16_t srcw, uint16_t srch, uint16_t srcx, uint16_t srcy, uint16_t w, uint16_t h);
 void DMACopyAlphaBitmap(uint16_t * dest, uint16_t destw, uint16_t desth, uint16_t x, uint16_t y, const uint16_t * src, uint16_t srcw, uint16_t srch, uint16_t srcx, uint16_t srcy, uint16_t w, uint16_t h);
 void DMACopyAlphaMask(uint16_t * dest, uint16_t destw, uint16_t desth, uint16_t x, uint16_t y, const uint8_t * src, uint16_t srcw, uint16_t srch, uint16_t srcx, uint16_t srcy, uint16_t w, uint16_t h, uint16_t bg_color);
-void onKeyPress();
 void onKeyError();
 void killEvents(event_t event);
-event_t getWindowEvent();
 
 //
 // These colors MUST be defined

radio/src/thirdparty/libopenui/src/menu.cpp

@@ -118,7 +118,6 @@ void MenuBody::onPress(size_t index)
 {
   Menu *menu = getParentMenu();
   if (index < lines.size()) {
-    onKeyPress();
     if (menu->multiple) {
       if (selectedIndex == (int)index)
         lines[index].onPress();

radio/src/thirdparty/libopenui/src/modal_window.cpp

@@ -42,7 +42,6 @@ void ModalWindow::deleteLater(bool detach, bool trash)
 void ModalWindow::onClicked()
 {
   if (closeWhenClickOutside) {
-    onKeyPress();
     deleteLater();
   }
 }

radio/src/thirdparty/libopenui/src/numberedit.cpp

@@ -71,7 +71,6 @@ void NumberEdit::onEvent(event_t event)
         } while (isValueAvailable && !isValueAvailable(value) && value <= vmax);
         if (value <= vmax) {
           setValue(value);
-          onKeyPress();
         }
         else {
           setValue(vmax);
@@ -87,7 +86,6 @@ void NumberEdit::onEvent(event_t event)
         } while (isValueAvailable && !isValueAvailable(value) && value >= vmin);
         if (value >= vmin) {
           setValue(value);
-          onKeyPress();
         }
         else {
           setValue(vmin);

radio/src/thirdparty/libopenui/src/table.cpp

@@ -259,11 +259,9 @@ void TableField::selectNext(int16_t dir)
 void TableField::onEvent(event_t event)
 {
   if (event == EVT_ROTARY_RIGHT) {
-    onKeyPress();
     selectNext(1);
   }
   else if (event == EVT_ROTARY_LEFT) {
-    onKeyPress();
     selectNext(-1);
   }
   else {