UART driver refactor (#11637)

keyboards/nullbitsco/nibble/remote_kb.c

@@ -27,6 +27,7 @@ This will require a new communication protocol, as the current one is limited.
 */
 
 #include "remote_kb.h"
+#include "uart.h"
 
 uint8_t
  msg[UART_MSG_LEN],

keyboards/nullbitsco/nibble/remote_kb.h

@@ -16,7 +16,6 @@
 #pragma once
 
 #include "quantum.h"
-#include "tmk_core/common/uart.h"
 
 #define SERIAL_UART_BAUD 153600 //low error rate for 32u4 @ 16MHz
 

keyboards/nullbitsco/nibble/rules.mk

@@ -1,9 +1,6 @@
 # MCU name
 MCU = atmega32u4
 
-# Interrupt driven control endpoint task(+60)
-OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
-
 # Bootloader selection
 BOOTLOADER = atmel-dfu
 
@@ -31,5 +28,5 @@ CUSTOM_MATRIX = lite        # Lite custom matrix
 SRC += matrix.c \
        bitc_led.c \
        big_led.c \
-       remote_kb.c \
-       tmk_core/common/uart.c
+       remote_kb.c
+QUANTUM_LIB_SRC += uart.c