modified app to not rely on external lib

lib/nrf24/nrf24.c

@@ -6,15 +6,6 @@
 #include <string.h>
 
 void nrf24_init() {
-    // this is needed if multiple SPI devices are connected to the same bus but with different CS pins
-    if(XTREME_SETTINGS()->spi_nrf24_handle == SpiDefault) {
-        furi_hal_gpio_init_simple(&gpio_ext_pc3, GpioModeOutputPushPull);
-        furi_hal_gpio_write(&gpio_ext_pc3, true);
-    } else if(XTREME_SETTINGS()->spi_nrf24_handle == SpiExtra) {
-        furi_hal_gpio_init_simple(&gpio_ext_pa4, GpioModeOutputPushPull);
-        furi_hal_gpio_write(&gpio_ext_pa4, true);
-    }
-
     furi_hal_spi_bus_handle_init(nrf24_HANDLE);
     furi_hal_spi_acquire(nrf24_HANDLE);
     furi_hal_gpio_init(nrf24_CE_PIN, GpioModeOutputPushPull, GpioPullUp, GpioSpeedVeryHigh);
@@ -26,13 +17,6 @@ void nrf24_deinit() {
     furi_hal_spi_bus_handle_deinit(nrf24_HANDLE);
     furi_hal_gpio_write(nrf24_CE_PIN, false);
     furi_hal_gpio_init(nrf24_CE_PIN, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
-
-    // resetting the CS pins to floating
-    if(XTREME_SETTINGS()->spi_nrf24_handle == SpiDefault) {
-        furi_hal_gpio_init_simple(&gpio_ext_pc3, GpioModeAnalog);
-    } else if(XTREME_SETTINGS()->spi_nrf24_handle == SpiExtra) {
-        furi_hal_gpio_init_simple(&gpio_ext_pa4, GpioModeAnalog);
-    }
 }
 
 void nrf24_spi_trx(

lib/nrf24/nrf24.h

@@ -2,7 +2,6 @@
 #include <stdbool.h>
 #include <stdint.h>
 #include <furi_hal_spi.h>
-#include <xtreme.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -42,9 +41,7 @@ extern "C" {
 
 #define nrf24_TIMEOUT 500
 #define nrf24_CE_PIN &gpio_ext_pb2
-#define nrf24_HANDLE                                                                         \
-    (XTREME_SETTINGS()->spi_nrf24_handle == SpiDefault ? &furi_hal_spi_bus_handle_external : \
-                                                         &furi_hal_spi_bus_handle_external_extra)
+#define nrf24_HANDLE &furi_hal_spi_bus_handle_external
 
 /* Low level API */