nimble/transport/uart: Remove unused deps

nimble/transport/uart/pkg.yml

@@ -28,7 +28,6 @@ pkg.keywords:
 pkg.deps:
     - "@apache-mynewt-core/hw/hal"
     - "@apache-mynewt-core/kernel/os"
-    - "@apache-mynewt-core/util/mem"
     - nimble
 
 pkg.apis:

nimble/transport/uart/src/ble_hci_uart.c

@@ -27,8 +27,6 @@
 #include "os/os_cputime.h"
 #include "bsp/bsp.h"
 #include "os/os.h"
-#include "mem/mem.h"
-#include "hal/hal_gpio.h"
 #include "hal/hal_uart.h"
 
 /* BLE */