hotfix caching websub

ayta/blueprints/websub.py

@@ -5,8 +5,6 @@ from ..extensions import caching, caching_unless
 bp = Blueprint('websub', __name__, url_prefix='/websub')
 
 @bp.route('/c/<cap>', methods=['GET', 'POST'])
-# Caching GET requests should be save since this endpoint is used as a capability URL
-@caching.cached(unless=caching_unless)
 def callback(cap):
     if request.method == 'GET':
         topic = request.args.get('hub.topic')