drivers: crypto: mbedtls_shim: remove legacy code

Remove inclusions that date back to the original addition of this driver
and that are no more required when PSA API is used.

Signed-off-by: Valerio Setti <vsetti@baylibre.com>

Author: valeriosetti

drivers/crypto/crypto_mbedtls_shim.c

@@ -15,20 +15,14 @@
 #include <errno.h>
 #include <zephyr/crypto/crypto.h>
 
-#if !defined(CONFIG_MBEDTLS_CFG_FILE)
-#include "mbedtls/config.h"
-#else
-#include CONFIG_MBEDTLS_CFG_FILE
-#endif /* CONFIG_MBEDTLS_CFG_FILE */
-
 #include <psa/crypto.h>
 
 #define MBEDTLS_SUPPORT (CAP_RAW_KEY | CAP_SEPARATE_IO_BUFS | CAP_SYNC_OPS | \
 		      CAP_NO_IV_PREFIX)
 
 #define LOG_LEVEL CONFIG_CRYPTO_LOG_LEVEL
 #include <zephyr/logging/log.h>
-LOG_MODULE_REGISTER(mbedtls);
+LOG_MODULE_REGISTER(mbedtls_shim);
 
 struct mbedtls_shim_session {
 	union {
@@ -46,12 +40,6 @@ struct mbedtls_shim_session mbedtls_sessions[CRYPTO_MAX_SESSION];
 
 static K_MUTEX_DEFINE(mbedtls_sessions_lock);
 
-#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
-#include "mbedtls/memory_buffer_alloc.h"
-#else
-#error "You need to define MBEDTLS_MEMORY_BUFFER_ALLOC_C"
-#endif /* MBEDTLS_MEMORY_BUFFER_ALLOC_C */
-
 static struct mbedtls_shim_session *mbedtls_get_unused_session(void)
 {
 	struct mbedtls_shim_session *session = NULL;