Tried to fix a broke filter.

backend/app/services/link_service.py

@@ -227,32 +227,9 @@ def list_public_users():
     return [row['username'] for row in rows]
 
 
-def list_tags(user_id: str | None = None):
+def list_tags():
     with get_connection() as conn:
-        if user_id:
-            rows = conn.execute(
-                '''
-                SELECT tags.name
-                FROM tags
-                LEFT JOIN users ON users.id = tags.created_by
-                WHERE tags.created_by IS NULL
-                   OR tags.created_by = ?
-                   OR users.is_admin = 1
-                ORDER BY tags.name
-                ''',
-                (user_id,),
-            ).fetchall()
-        else:
-            rows = conn.execute(
-                '''
-                SELECT tags.name
-                FROM tags
-                LEFT JOIN users ON users.id = tags.created_by
-                WHERE tags.created_by IS NULL
-                   OR users.is_admin = 1
-                ORDER BY tags.name
-                ''',
-            ).fetchall()
+        rows = conn.execute('SELECT name FROM tags ORDER BY name').fetchall()
     tags = []
     seen = set()
     for row in rows: