diff --git a/public/js/checkUsernameInput.js b/public/js/checkUsernameInput.js
deleted file mode 100644
index b9fd612..0000000
--- a/public/js/checkUsernameInput.js
+++ /dev/null
@@ -1,9 +0,0 @@
-document.getElementById('email').addEventListener('input', function() {
-    let emailInput = document.getElementById('email').value;
-    let prefix = document.getElementById('email-prefix');
-    if (emailInput.includes('@p0ntus.com')) {
-        prefix.innerText = emailInput.split('@')[0];
-    } else {
-        prefix.innerText = emailInput;
-    }
-});
\ No newline at end of file