diff --git a/boards/risc-v/bl602/bl602evb/configs/ble/defconfig b/boards/risc-v/bl602/bl602evb/configs/ble/defconfig
deleted file mode 100644
index 838e7c9ef4..0000000000
--- a/boards/risc-v/bl602/bl602evb/configs/ble/defconfig
+++ /dev/null
@@ -1,111 +0,0 @@
-#
-# This file is autogenerated: PLEASE DO NOT EDIT IT.
-#
-# You can use "make menuconfig" to make any modifications to the installed .config file.
-# You can then do "make savedefconfig" to generate a new defconfig file that includes your
-# modifications.
-#
-# CONFIG_DISABLE_POSIX_TIMERS is not set
-# CONFIG_DISABLE_PSEUDOFS_OPERATIONS is not set
-# CONFIG_NSH_DISABLEBG is not set
-# CONFIG_NSH_DISABLE_LOSMART is not set
-# CONFIG_NSH_DISABLE_UNAME is not set
-CONFIG_ARCH="risc-v"
-CONFIG_ARCH_BOARD="bl602evb"
-CONFIG_ARCH_BOARD_BL602EVB=y
-CONFIG_ARCH_CHIP="bl602"
-CONFIG_ARCH_CHIP_BL602=y
-CONFIG_ARCH_INTERRUPTSTACK=8192
-CONFIG_ARCH_RISCV=y
-CONFIG_ARCH_STACKDUMP=y
-CONFIG_BINFMT_DISABLE=y
-CONFIG_BL602_BLE_CONTROLLER=y
-CONFIG_BL602_HAVE_UART0=y
-CONFIG_BL602_WIRELESS=y
-CONFIG_BOARD_LOOPSPERMSEC=10000
-CONFIG_BUILTIN=y
-CONFIG_DEBUG_FEATURES=y
-CONFIG_DEBUG_FULLOPT=y
-CONFIG_DEBUG_SYMBOLS=y
-CONFIG_DEFAULT_SMALL=y
-CONFIG_DEV_ZERO=y
-CONFIG_DRIVERS_BLUETOOTH=y
-CONFIG_DRIVERS_IEEE80211=y
-CONFIG_DRIVERS_WIRELESS=y
-CONFIG_EXAMPLES_DHCPD=y
-CONFIG_EXAMPLES_NETTEST=y
-CONFIG_EXAMPLES_NETTEST_DEVNAME="wlan0"
-CONFIG_EXAMPLES_NETTEST_PERFORMANCE=y
-CONFIG_EXAMPLES_TCPBLASTER=y
-CONFIG_EXAMPLES_TCPBLASTER_DEVNAME="wlan0"
-CONFIG_EXAMPLES_TCPBLASTER_SERVERIP=0xc0a85802
-CONFIG_FS_PROCFS=y
-CONFIG_IDLETHREAD_STACKSIZE=8192
-CONFIG_INTELHEX_BINARY=y
-CONFIG_LIBC_PERROR_STDOUT=y
-CONFIG_LIBC_STRERROR=y
-CONFIG_MQ_MAXMSGSIZE=1024
-CONFIG_NET=y
-CONFIG_NETDB_DNSCLIENT=y
-CONFIG_NETDEV_PHY_IOCTL=y
-CONFIG_NETDEV_WIRELESS_IOCTL=y
-CONFIG_NETINIT_NETLOCAL=y
-CONFIG_NETINIT_WAPI_PASSPHRASE="bouffalolab2016"
-CONFIG_NETINIT_WAPI_SSID="bouffalolab"
-CONFIG_NETUTILS_DHCPD=y
-CONFIG_NET_ARP_IPIN=y
-CONFIG_NET_ARP_SEND=y
-CONFIG_NET_BROADCAST=y
-CONFIG_NET_ICMP=y
-CONFIG_NET_ICMP_SOCKET=y
-CONFIG_NET_TCP=y
-CONFIG_NET_TCP_DELAYED_ACK=y
-CONFIG_NET_TCP_KEEPALIVE=y
-CONFIG_NET_UDP=y
-CONFIG_NSH_ARCHINIT=y
-CONFIG_NSH_BUILTIN_APPS=y
-CONFIG_NSH_DISABLE_CD=y
-CONFIG_NSH_DISABLE_CP=y
-CONFIG_NSH_DISABLE_MKDIR=y
-CONFIG_NSH_DISABLE_RM=y
-CONFIG_NSH_DISABLE_RMDIR=y
-CONFIG_NSH_DISABLE_UMOUNT=y
-CONFIG_NSH_FILEIOSIZE=64
-CONFIG_NSH_STRERROR=y
-CONFIG_PREALLOC_TIMERS=0
-CONFIG_PSEUDOTERM=y
-CONFIG_PTHREAD_MUTEX_TYPES=y
-CONFIG_PTHREAD_STACK_DEFAULT=8192
-CONFIG_RAM_SIZE=134217728
-CONFIG_RAM_START=0xc0800000
-CONFIG_RAW_BINARY=y
-CONFIG_READLINE_CMD_HISTORY=y
-CONFIG_RR_INTERVAL=200
-CONFIG_RV32IM_CUSTOM_IRQ_SUPPORT=y
-CONFIG_SCHED_HPWORK=y
-CONFIG_SCHED_LPWORK=y
-CONFIG_SCHED_WAITPID=y
-CONFIG_SIG_EVTHREAD=y
-CONFIG_SPINLOCK=y
-CONFIG_STACK_COLORATION=y
-CONFIG_START_DAY=20
-CONFIG_START_MONTH=3
-CONFIG_START_YEAR=2020
-CONFIG_STDIO_DISABLE_BUFFERING=y
-CONFIG_SYSTEM_DHCPC_RENEW=y
-CONFIG_SYSTEM_NSH=y
-CONFIG_SYSTEM_PING=y
-CONFIG_TASK_NAME_SIZE=12
-CONFIG_TASK_SPAWN_DEFAULT_STACKSIZE=8192
-CONFIG_TESTING_MM=y
-CONFIG_TESTING_OSTEST=y
-CONFIG_TESTING_OSTEST_FPUSIZE=132
-CONFIG_UART0_BAUD=2000000
-CONFIG_UART0_RXBUFSIZE=128
-CONFIG_UART0_SERIAL_CONSOLE=y
-CONFIG_UART0_TXBUFSIZE=128
-CONFIG_UART_BTH4=y
-CONFIG_USERMAIN_STACKSIZE=8192
-CONFIG_USER_ENTRYPOINT="nsh_main"
-CONFIG_WIRELESS_WAPI=y
-CONFIG_WIRELESS_WAPI_CMDTOOL=y
diff --git a/boards/risc-v/esp32c3/esp32c3-devkit/configs/ble/defconfig b/boards/risc-v/esp32c3/esp32c3-devkit/configs/ble/defconfig
deleted file mode 100644
index fb1bb178e8..0000000000
--- a/boards/risc-v/esp32c3/esp32c3-devkit/configs/ble/defconfig
+++ /dev/null
@@ -1,49 +0,0 @@
-#
-# This file is autogenerated: PLEASE DO NOT EDIT IT.
-#
-# You can use "make menuconfig" to make any modifications to the installed .config file.
-# You can then do "make savedefconfig" to generate a new defconfig file that includes your
-# modifications.
-#
-CONFIG_ARCH="risc-v"
-CONFIG_ARCH_BOARD="esp32c3-devkit"
-CONFIG_ARCH_BOARD_ESP32C3_DEVKIT=y
-CONFIG_ARCH_CHIP="esp32c3"
-CONFIG_ARCH_CHIP_ESP32C3=y
-CONFIG_ARCH_CHIP_ESP32C3WROOM02=y
-CONFIG_ARCH_INTERRUPTSTACK=1536
-CONFIG_ARCH_RISCV=y
-CONFIG_ARCH_STACKDUMP=y
-CONFIG_BOARD_LOOPSPERMSEC=16717
-CONFIG_BTSAK=y
-CONFIG_BUILTIN=y
-CONFIG_DRIVERS_BLUETOOTH=y
-CONFIG_DRIVERS_IEEE80211=y
-CONFIG_DRIVERS_WIRELESS=y
-CONFIG_ESP32C3_BLE=y
-CONFIG_FS_PROCFS=y
-CONFIG_HAVE_CXX=y
-CONFIG_HAVE_CXXINITIALIZE=y
-CONFIG_IDLETHREAD_STACKSIZE=3072
-CONFIG_INTELHEX_BINARY=y
-CONFIG_NAME_MAX=48
-CONFIG_NET_BLUETOOTH=y
-CONFIG_NET_SOCKOPTS=y
-CONFIG_NET_TCP=y
-CONFIG_NSH_ARCHINIT=y
-CONFIG_NSH_BUILTIN_APPS=y
-CONFIG_NSH_FILEIOSIZE=512
-CONFIG_NSH_LINELEN=64
-CONFIG_NSH_READLINE=y
-CONFIG_PREALLOC_TIMERS=4
-CONFIG_PTHREAD_MUTEX_TYPES=y
-CONFIG_RAW_BINARY=y
-CONFIG_RR_INTERVAL=200
-CONFIG_SCHED_WAITPID=y
-CONFIG_SIG_DEFAULT=y
-CONFIG_SPINLOCK=y
-CONFIG_SYSTEM_NSH=y
-CONFIG_UART0_SERIAL_CONSOLE=y
-CONFIG_USER_ENTRYPOINT="nsh_main"
-CONFIG_WIRELESS=y
-CONFIG_WIRELESS_BLUETOOTH=y