docs: Delete user guide esp32-s2-devkitc-1

Author: zhangshuxian

docs/_static/esp32-s2-devkitc-1-v1-annotated-photo.png

@@ -123,7 +123,7 @@ If you have one of {IDF_TARGET_NAME} official development boards listed below, y
 
         ESP32-S2-Saola-1 <../hw-reference/esp32s2/user-guide-saola-1-v1.2>
         ESP32-S2-DevKitM-1 <https://docs.espressif.com/projects/esp-dev-kits/en/latest/esp32s2/esp32-s2-devkitm-1/index.html>
-        ESP32-S2-DevKitC-1 <../hw-reference/esp32s2/user-guide-s2-devkitc-1>
+        ESP32-S2-DevKitC-1 <https://docs.espressif.com/projects/esp-dev-kits/en/latest/esp32s2/esp32-s2-devkitc-1/index.html>
         ESP32-S2-Kaluga-Kit <../hw-reference/esp32s2/user-guide-esp32-s2-kaluga-1-kit>
 
 .. only:: esp32c3

docs/_static/esp32-s2-devkitc-1-v1-block-diags.png

@@ -123,7 +123,7 @@
 
         ESP32-S2-Saola-1 <../hw-reference/esp32s2/user-guide-saola-1-v1.2>
         ESP32-S2-DevKitM-1 <https://docs.espressif.com/projects/esp-dev-kits/zh_CN/latest/esp32s2/esp32-s2-devkitm-1/index.html>
-        ESP32-S2-DevKitC-1 <../hw-reference/esp32s2/user-guide-s2-devkitc-1>
+        ESP32-S2-DevKitC-1 <https://docs.espressif.com/projects/esp-dev-kits/zh_CN/latest/esp32s2/esp32-s2-devkitc-1/index.html>
         ESP32-S2-Kaluga-Kit <../hw-reference/esp32s2/user-guide-esp32-s2-kaluga-1-kit>
 
 .. only:: esp32c3