Simplify limiting encoderLine in END_MENU

Marlin/ultralcd.cpp

     #define MENU_MULTIPLIER_ITEM_EDIT_CALLBACK(type, label, args...) MENU_ITEM(setting_edit_callback_ ## type, label, PSTR(label), ## args)
   #endif //!ENCODER_RATE_MULTIPLIER
   #define END_MENU() \
-      if (encoderLine >= _menuItemNr) { encoderPosition = _menuItemNr * (ENCODER_STEPS_PER_MENU_ITEM) - 1; encoderLine = encoderPosition / ENCODER_STEPS_PER_MENU_ITEM; }\
+      if (encoderLine >= _menuItemNr) { encoderPosition = _menuItemNr * (ENCODER_STEPS_PER_MENU_ITEM) - 1; encoderLine = _menuItemNr - 1; }\
       if (encoderLine >= currentMenuViewOffset + LCD_HEIGHT) { currentMenuViewOffset = encoderLine - (LCD_HEIGHT) + 1; lcdDrawUpdate = 1; _lineNr = currentMenuViewOffset - 1; _drawLineNr = -1; } \
       } } while(0)