purge some unused wolfssl features

modules/Makefile

@@ -126,7 +126,7 @@ endif
 # SSH
 CSRC += $(wildcard ../thirdparty/wolfssl/wolfcrypt/src/*.c) ../thirdparty/wolfssl/wolfcrypt/src/port/st/stm32.c
 INCLUDES += -I../thirdparty/wolfssl
-CFLAGS += -DWOLFSSL_LWIP -DWOLFSSL_STM32F4 -DFREERTOS -DFREERTOS_TCP -DNO_WOLFSSL_DIR -DWOLFSSL_USER_SETTINGS -DNO_FILESYSTEM -DWOLFSSL_IAR_ARM -DWOLFSSL_LEANPSK -DINLINE=inline -DNO_WOLFSSL_MEMORY -DHAVE_ECC -DHAVE_STRINGS_H -DWOLF_C99 -DWOLFSSL_NO_PEM -DHAVE_HASHDRBG -DSTM32F4
+CFLAGS += -DWOLFSSL_LWIP -DWOLFSSL_STM32F4 -DFREERTOS -DFREERTOS_TCP -DNO_WOLFSSL_DIR -DWOLFSSL_USER_SETTINGS -DNO_FILESYSTEM -DWOLFSSL_IAR_ARM -DWOLFSSL_LEANPSK -DINLINE=inline -DNO_WOLFSSL_MEMORY -DHAVE_ECC -DHAVE_STRINGS_H -DWOLF_C99 -DWOLFSSL_NO_PEM -DHAVE_HASHDRBG -DSTM32F4 -DNO_WOLFSSL_CLIENT -DNO_DES3
 # incompatible with SPL
 CFLAGS += -DNO_STM32_CRYPTO
 CSRC += $(wildcard ../thirdparty/wolfssh/wolfcrypt/src/*.c ../thirdparty/wolfssh/src/*.c)