Remove explicit include of mbedtls/config.h

Including mbedtls/config.h should not be done explicitely. This prevents using MBEDTLS_CONFIG_FILE macro.
Correct config file is automatically included by other mbedtls header files.

Author: Kimmo Vaisanen

features/device_key/source/DeviceKey.cpp

@@ -17,7 +17,6 @@
 #include "DeviceKey.h"
 
 #if DEVICEKEY_ENABLED
-#include "mbedtls/config.h"
 #include "mbedtls/cmac.h"
 #include "mbedtls/platform.h"
 #include "features/storage/kvstore/include/KVStore.h"

features/lorawan/lorastack/mac/LoRaMacCrypto.h

@@ -30,7 +30,6 @@ SPDX-License-Identifier: BSD-3-Clause
 #ifndef MBED_LORAWAN_MAC_LORAMAC_CRYPTO_H__
 #define MBED_LORAWAN_MAC_LORAMAC_CRYPTO_H__
 
-#include "mbedtls/config.h"
 #include "mbedtls/aes.h"
 #include "mbedtls/cmac.h"