Ladybird+LibWebView+Browser: Remove ability to run with AST interpreter

Author: https://github.com/awesomekling
Commit: 99ac34eeae
Pull-request: https://github.com/SerenityOS/serenity/pull/20421

Userland/Services/WebContent/WebContentServer.ipc

@@ -9,9 +9,6 @@
 
 endpoint WebContentServer
 {
-    // NOTE: This is only used on SerenityOS when attaching to a WebContent process served by SystemServer.
-    set_use_javascript_bytecode(bool use_javascript_bytecode) =|
-
     get_window_handle() => (String handle)
     set_window_handle(String handle) =|