fix(config): remove value for the deprecated WSGI_PROXIES variable

Author: max-moser

invenio_app_rdm/config.py

@@ -725,13 +725,6 @@ def files_rest_permission_factory(obj, action):
 SEARCH_HOSTS = [{"host": "localhost", "port": 9200}]
 """Search hosts."""
 
-# Invenio-Base
-# ============
-# See https://invenio-base.readthedocs.io/en/latest/api.html#invenio_base.wsgi.wsgi_proxyfix  # noqa
-
-WSGI_PROXIES = 2
-"""Correct number of proxies in front of your application."""
-
 # Invenio-REST
 # ============