Optimize size of USB_USB BLE Converter

keyboards/converter/usb_usb/ble/config.h

@@ -1,5 +1,4 @@
-#ifndef CONFIG_BLE_H
+#pragma once
-#define CONFIG_BLE_H
 
 #undef PRODUCT
 #define PRODUCT         QMK BLE Adapter
@@ -10,4 +9,5 @@
 #define ADAFRUIT_BLE_ENABLE_MODE_LEDS 0
 #define ADAFRUIT_BLE_ENABLE_POWER_LED 0
 
-#endif
+#define NO_ACTION_MACRO
+#define NO_ACTION_FUNCTION

keyboards/converter/usb_usb/ble/rules.mk

@@ -1,3 +1,23 @@
 BLUETOOTH = AdafruitBLE
 ADAFRUIT_BLE_ENABLE = yes
 F_CPU = 8000000
+
+BOOTMAGIC_ENABLE = no      # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE = no       # Mouse keys(+4700)
+EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
+CONSOLE_ENABLE = no        # Console for debug(+400)
+COMMAND_ENABLE = no        # Commands for debug and configuration
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = no            # USB Nkey Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality on B7 by default
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+MIDI_ENABLE = no            # MIDI support (+2400 to 4200, depending on config)
+UNICODE_ENABLE = no         # Unicode
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+AUDIO_ENABLE = no           # Audio output on port C6
+FAUXCLICKY_ENABLE = no      # Use buzzer to emulate clicky switches
+HD44780_ENABLE = no 		# Enable support for HD44780 based LCDs (+400)
+
+EXTRAFLAGS += -flto