Update defconfig.common

Author: Jason2866

configs/defconfig.common

@@ -100,15 +100,6 @@ CONFIG_LWIP_TCP_RECVMBOX_SIZE=16
 CONFIG_LWIP_UDP_RECVMBOX_SIZE=64
 CONFIG_NEWLIB_NANO_FORMAT=y
 # CONFIG_DAC_DMA_AUTO_16BIT_ALIGN is not set
-CONFIG_LWIP_SNTP_UPDATE_DELAY=10800000
-CONFIG_LWIP_DHCP_GET_NTP_SRV=y
-CONFIG_LWIP_IPV6_AUTOCONFIG=y
-CONFIG_LWIP_IPV6_DHCP6=y
-CONFIG_LWIP_IPV6_RDNSS_MAX_DNS_SERVERS=2
-CONFIG_LWIP_PPP_SUPPORT=y
-CONFIG_LWIP_PPP_NOTIFY_PHASE_SUPPORT=y
-CONFIG_LWIP_PPP_PAP_SUPPORT=y
-CONFIG_LWIP_PPP_ENABLE_IPV6=n
 CONFIG_MBEDTLS_PSK_MODES=y
 CONFIG_MBEDTLS_KEY_EXCHANGE_PSK=y
 CONFIG_MBEDTLS_CAMELLIA_C=y