Browser+WebContent+WebDriver: Move Get Page Source to WebContent

Author: https://github.com/trflynn89
Commit: 88dcdf681f
Pull-request: https://github.com/SerenityOS/serenity/pull/16019
Reviewed-by: https://github.com/linusg ✅

Userland/Libraries/LibWebView/OutOfProcessWebView.cpp

@@ -481,11 +481,6 @@ void OutOfProcessWebView::get_source()
     client().async_get_source();
 }
 
-String OutOfProcessWebView::serialize_source()
-{
-    return client().serialize_source();
-}
-
 void OutOfProcessWebView::inspect_dom_tree()
 {
     client().async_inspect_dom_tree();