Change delete execution

app/admin/views.py

@@ -2,7 +2,7 @@ from app import db
 from app.decorators import admin_required
 from app.models import Role, User
 from app.tables import AdminUserItem, AdminUserTable
-from app.utils import background_delete_user
+from app.background_functions import delete_user_
 from flask import current_app, flash, redirect, render_template, url_for
 from flask_login import login_required
 from . import admin
@@ -50,10 +50,9 @@ def admin_user_page(user_id):
 @login_required
 @admin_required
 def admin_delete_user(user_id):
-    delete_thread = threading.Thread(
-        target=background_delete_user,
-        args=(current_app._get_current_object(), user_id)
-    )
+    delete_thread = threading.Thread(target=delete_user_,
+                                     args=(current_app._get_current_object(),
+                                           user_id))
     delete_thread.start()
     flash('User {} has been deleted!'.format(user_id))
     return redirect(url_for('admin.for_admins_only'))