STM32F4: remove md5 from the mbedtls config file

Author: 0xc0170

features/mbedtls/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F439xI/mbedtls_device.h

@@ -28,5 +28,4 @@
 
 #define MBEDTLS_MD5_ALT
 
-#define MBEDTLS_MD5_C
 #endif /* MBEDTLS_DEVICE_H */

targets/targets.json

@@ -1192,7 +1192,6 @@
         "inherits": ["FAMILY_STM32"],
         "core": "Cortex-M7F",
         "extra_labels_add": ["STM32F7", "STM32F756", "STM32F756xG", "STM32F756ZG"],
-        "macros_add": ["MBEDTLS_CONFIG_HW_SUPPORT", "MBEDTLS_MD5_C", "MBEDTLS_CONFIG_HW_SUPPORT"],
         "config": {
             "d11_configuration": {
                 "help": "Value: PA_7 for the default board configuration, PB_5 in case of solder bridge update (SB121 off/ SB122 on)",