docs: update api-ref system docs for C2

docs/docs_not_updated/esp32c2.txt

@@ -5,12 +5,6 @@ api-guides/esp-ble-mesh/ble-mesh-feature-list
 api-guides/esp-ble-mesh/ble-mesh-terminology
 api-guides/esp-ble-mesh/ble-mesh-architecture
 api-guides/esp-ble-mesh/ble-mesh-faq
-api-reference/api-conventions
-api-reference/template
-api-reference/provisioning/protocomm
-api-reference/provisioning/provisioning
-api-reference/provisioning/index
-api-reference/provisioning/wifi_provisioning
 api-reference/storage/vfs
 api-reference/storage/spiffs
 api-reference/storage/wear-levelling
@@ -23,49 +17,10 @@ api-reference/storage/nvs_flash
 api-reference/storage/sdmmc
 api-reference/storage/mass_mfg
 api-reference/storage/index
-api-reference/peripherals/adc
-api-reference/peripherals/sdspi_host
-api-reference/peripherals/lcd
-api-reference/kconfig
-api-reference/network/esp_openthread
-api-reference/network/esp_eth
-api-reference/network/esp_netif_driver
-api-reference/network/tcpip_adapter_migration
-api-reference/network/esp_dpp
-api-reference/network/esp_now
-api-reference/network/esp_smartconfig
-api-reference/network/index
-api-reference/network/esp_netif
 api-reference/system/sleep_modes
-api-reference/system/ota
-api-reference/system/app_trace
-api-reference/system/perfmon
-api-reference/system/esp_function_with_shared_stack
-api-reference/system/async_memcpy
-api-reference/system/random
-api-reference/system/esp_timer
-api-reference/system/esp_event
-api-reference/system/freertos
-api-reference/system/system_time
-api-reference/system/log
-api-reference/system/internal-unstable
-api-reference/system/app_image_format
-api-reference/system/freertos_additions
-api-reference/system/himem
 api-reference/system/power_management
-api-reference/system/mem_alloc
-api-reference/system/esp_event_legacy
 api-reference/system/wdts
 api-reference/system/inc/power_management_esp32s2_and_later
-api-reference/system/heap_debug
-api-reference/system/ipc
-api-reference/system/esp_https_ota
-api-reference/system/esp_err
-api-reference/system/console
-api-reference/system/intr_alloc
-api-reference/system/index
-api-reference/system/system
-api-reference/system/pthread
 api-reference/bluetooth/esp_spp
 api-reference/bluetooth/esp_avrc
 api-reference/bluetooth/controller_vhci
@@ -89,7 +44,6 @@ api-reference/bluetooth/esp-ble-mesh
 api-reference/bluetooth/index
 api-reference/bluetooth/esp_gap_ble
 api-reference/bluetooth/classic_bt
-api-reference/error-codes
 api-reference/protocols/icmp_echo
 api-reference/protocols/esp_serial_slave_link
 api-reference/protocols/mqtt