remove bridge filter from doc (#574)

* remove bridge filter from doc

* fix anchors

doc/README.md

@@ -78,7 +78,6 @@ It could be created, updated, deleted by admin operation. They control various r
 
 - [API Aggregator](./reference/filters.md#APIAggregator) - The API Aggregator forwards one request to multiple API HTTP Pipelines in the same namespace and aggregates responses.
 - [Proxy](./reference/filters.md#Proxy) - The Proxy filter is a proxy of backend service. 
-- [Bridge](./reference/filters.md#Bridge) - The Bridge filter route requests from one pipeline to other pipelines or HTTP proxies under an HTTP server.
 - [CORSAdaptor](./reference/filters.md#CORSAdaptor) - The CORSAdaptor handles the CORS preflight request for backend service.
 - [Fallback](./reference/filters.md#Fallback) - The Fallback filter mocks a response as fallback action of other filters. 
 - [Mock](./reference/filters.md#Mock) - The Mock filter mocks responses according to configured rules, mainly for testing purposes.

doc/reference/filters.md

@@ -7,53 +7,50 @@
  - [Proxy](#proxy)
  - [Configuration](#configuration-1)
  - [Results](#results-1)
- - [Bridge](#bridge)
+ - [CORSAdaptor](#corsadaptor)
  - [Configuration](#configuration-2)
  - [Results](#results-2)
- - [CORSAdaptor](#corsadaptor)
+ - [Fallback](#fallback)
  - [Configuration](#configuration-3)
  - [Results](#results-3)
- - [Fallback](#fallback)
+ - [Mock](#mock)
  - [Configuration](#configuration-4)
  - [Results](#results-4)
- - [Mock](#mock)
+ - [RemoteFilter](#remotefilter)
  - [Configuration](#configuration-5)
  - [Results](#results-5)
- - [RemoteFilter](#remotefilter)
+ - [RequestAdaptor](#requestadaptor)
  - [Configuration](#configuration-6)
  - [Results](#results-6)
- - [RequestAdaptor](#requestadaptor)
+ - [CircuitBreaker](#circuitbreaker)
  - [Configuration](#configuration-7)
  - [Results](#results-7)
- - [CircuitBreaker](#circuitbreaker)
+ - [RateLimiter](#ratelimiter)
  - [Configuration](#configuration-8)
  - [Results](#results-8)
- - [RateLimiter](#ratelimiter)
+ - [TimeLimiter](#timelimiter)
  - [Configuration](#configuration-9)
  - [Results](#results-9)
- - [TimeLimiter](#timelimiter)
+ - [Retryer](#retryer)
  - [Configuration](#configuration-10)
  - [Results](#results-10)
- - [Retryer](#retryer)
+ - [ResponseAdaptor](#responseadaptor)
  - [Configuration](#configuration-11)
  - [Results](#results-11)
- - [ResponseAdaptor](#responseadaptor)
+ - [Validator](#validator)
  - [Configuration](#configuration-12)
  - [Results](#results-12)
- - [Validator](#validator)
+ - [WasmHost](#wasmhost)
  - [Configuration](#configuration-13)
  - [Results](#results-13)
- - [WasmHost](#wasmhost)
+ - [Kafka](#kafka)
  - [Configuration](#configuration-14)
  - [Results](#results-14)
- - [Kafka](#kafka)
+ - [HeaderToJSON](#headertojson)
  - [Configuration](#configuration-15)
  - [Results](#results-15)
- - [HeaderToJSON](#headertojson)
- - [Configuration](#configuration-16)
- - [Results](#results-16)
  - [CertExtractor](#certextractor)
- - [Configuration](#configuration-17)
+ - [Configuration](#configuration-16))
  - [Common Types](#common-types)
  - [apiaggregator.Pipeline](#apiaggregatorpipeline)
  - [pathadaptor.Spec](#pathadaptorspec)
@@ -203,33 +200,6 @@ mainPool:
 | clientError | Client-side(Easegress) network error |
 | serverError | Server-side network error |
 
-## Bridge
-
-The Bridge filter route requests from one pipeline to other pipelines or HTTP proxies under an HTTP server.
-
-The upstream filter set the target pipeline/proxy in request header `X-Easegress-Bridge-Dest`. Bridge extracts the header value and tries to match it in the configuration. It sends the request if a destination matched and aborts the process if no match. It selects the first destination from the filter configuration if there's no header named `X-Easegress-Bridge-Dest`.
-
-Below is an example configuration with two destinations.
-
-```yaml
-kind: Bridge
-name: bridge-example
-destinations: ["pipeline1", "pipeline2"]
-```
-
-### Configuration
-
-| Name | Type | Description | Required |
-| ------------ | -------- | -------------------------------- | -------- |
-| destinations | []string | Destination pipeline/proxy names | Yes |
-
-### Results
-
-| Value | Description |
-| ----------------------- | ------------------------------------ |
-| destinationNotFound | The desired destination is not found |
-| invokeDestinationFailed | Failed to invoke the destination |
-
 ## CORSAdaptor
 
 The CORSAdaptor handles the [CORS](https://en.wikipedia.org/wiki/Cross-origin_resource_sharing) preflight request for backend service.