Tests/LibWeb: Remove unused code from dialog test

Author: https://github.com/tcl3
Commit: https://github.com/SerenityOS/serenity/commit/88fe236c77
Pull-request: https://github.com/SerenityOS/serenity/pull/23204
Reviewed-by: https://github.com/trflynn89 ✅

Tests/LibWeb/Text/input/form-method-dialog.html

@@ -1,7 +1,3 @@
-<style>
-    #test-dialog {
-    }
-</style>
 <script src="./include.js"></script>
 <dialog id="test-dialog" open>
     <form method="dialog">
@@ -12,8 +8,7 @@
     test(() => {
         const dialog = document.getElementById("test-dialog");
         const submitter = document.getElementById("submit-button");
-        const submitterRect = submitter.getBoundingClientRect();
-        const form = document.forms[0];        
+        const form = document.forms[0];
         println(`dialog.open before form submit: ${dialog.open}`);
         form.submit();
         println(`dialog.open after form submit: ${dialog.open}`);