docs: remove ip tagging filter (#285)

This is not implemented. It can be added back for v2 only once it is
implemented.

Signed-off-by: Matt Klein <mklein@lyft.com>

api/filter/network/http_connection_manager.proto

@@ -42,7 +42,6 @@ message HttpFilter {
   // * :ref:`envoy.grpc_web <config_http_filters_grpc_web>`
   // * :ref:`envoy.health_check <config_http_filters_health_check>`
   // * :ref:`envoy.lua <config_http_filters_lua>`
-  // * :ref:`envoy.ip_tagging <config_http_filters_ip_tagging>`
   // * :ref:`envoy.rate_limit <config_http_filters_rate_limit>`
   // * :ref:`envoy.router <config_http_filters_router>`
   string name = 1 [(validate.rules).string.min_len = 1];

docs/root/configuration/http_filters/http_filters.rst

@@ -14,7 +14,6 @@ HTTP filters
   grpc_json_transcoder_filter
   grpc_web_filter
   health_check_filter
-  ip_tagging_filter
   rate_limit_filter
   router_filter
   lua_filter

docs/root/configuration/http_filters/ip_tagging_filter.rst

@@ -1,47 +0,0 @@
-.. _config_http_filters_ip_tagging:
-
-Ip tagging filter
-====================
-
-This is an HTTP filter which enables Envoy to tag requests with extra information such as location, cloud source, and any
-extra data. This is useful to prevent against DDoS.
-
-**Note**: this filter is under active development, and currently does not perform any tagging on requests. In other
-words, installing this filter is a no-op in the filter chain.
-
-.. code-block:: json
-
-  {
-    "name": "ip_tagging",
-    "config": {
-      "request_type": "...",
-      "ip_tags": []
-    }
-  }
-
-request_type
-  *(optional, string)* The type of requests the filter should apply to. The supported
-  types are *internal*, *external* or *both*. A request is considered internal if
-  :ref:`x-envoy-internal<config_http_conn_man_headers_x-envoy-internal>` is set to true. If
-  :ref:`x-envoy-internal<config_http_conn_man_headers_x-envoy-internal>` is not set or false, a
-  request is considered external. The filter defaults to *both*, and it will apply to all request
-  types.
-
-ip_tags:
-  *(optional, array)* Specifies the list of ip tags to set for a request.
-
-Ip tags
--------
-.. code-block:: json
-
-  {
-    "ip_tag_name": "...",
-    "ip_list": []
-  }
-
-ip_tag_name:
-  *(required, string)* Specifies the ip tag name to apply.
-
-ip_list:
-  *(required, list of strings)* A list of IP address and subnet masks that will be tagged with the ``ip_tag_name``. Both
-  IPv4 and IPv6 CIDR addresses are allowed here.