Update CODE_OF_CONDUCT.md

.github/CODE_OF_CONDUCT.md

@@ -17,7 +17,6 @@ _Basically_, Javadoc in class should always contain `@author`, `@since`, and `@s
     * Overriding methods should add `@see` which linked to the method which is called. `@author` and `@since` is optional.
     * Functional classes (**not methods**) should not add `@author`.
 * Classes for block shall always be Javadoc'd. `@see` should be linked to its block entity. If the superclass is located in `ziyue.tjmetro.mod.base`, add it to `@see` as well.
-    * Classes in `ziyue.tjmetro.mod.base` should append `@see` which linked to all subclasses.
 * Classes for block entity shall add `@see` which linked to its renderer. If there is a screen for it, link it too.
 * Classes for screen shall add `@see` which linked to its open screen packet and update packet.
 * Classes for open screen packets shall add `@see` which linked to its screen.
@@ -47,4 +46,4 @@ If `at` is `HEAD`, you should name the method with `before%MethodName%`. If `at`
 private static void beforeMethodName(...) {
     // Your code here
 }
-```
+```