fix: use hook for website theme scss
diff --git a/erpnext/hooks.py b/erpnext/hooks.py
index 463ad6c..79a640e 100644
--- a/erpnext/hooks.py
+++ b/erpnext/hooks.py
@@ -19,11 +19,11 @@
 app_include_css = "assets/css/erpnext.css"
 web_include_js = "assets/js/erpnext-web.min.js"
 web_include_css = "assets/css/erpnext-web.css"
+website_theme_scss = "erpnext/public/scss/website"
 
 doctype_js = {
 	"Communication": "public/js/communication.js",
 	"Event": "public/js/event.js",
-	"Website Theme": "public/js/website_theme.js",
 	"Newsletter": "public/js/newsletter.js"
 }
 
diff --git a/erpnext/public/js/website_theme.js b/erpnext/public/js/website_theme.js
deleted file mode 100644
index 9662f78..0000000
--- a/erpnext/public/js/website_theme.js
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright (c) 2019, Frappe Technologies Pvt. Ltd. and Contributors
-// MIT License. See license.txt
-
-frappe.ui.form.on('Website Theme', {
-	validate(frm) {
-		let theme_scss = frm.doc.theme_scss;
-		if (theme_scss && (theme_scss.includes('frappe/public/scss/website')
-			&& !theme_scss.includes('erpnext/public/scss/website'))
-		) {
-			frm.set_value('theme_scss',
-				`${frm.doc.theme_scss}\n@import "erpnext/public/scss/website";`);
-		}
-	}
-});