Remove Reference Supporting Dynamic Domains (prebid#3724)

* Remove Reference Supporting Dynamic Domains

* Grammar Fix

Author: SyntaxNode

prebid-server/developers/add-new-bidder-go.md

@@ -500,7 +500,7 @@ This method may be called multiple times if the host has configured aliases of y
 The first argument, `bidderName`, is the name of the bidder being built. This may be the bidder name you've chosen or it may be an alias. Most adapters don't make use of the `bidderName`, but its provided by the core framework for situations where the adapter might need to do something special for aliases.
 
 The second argument, `config`, is all the configuration values set for your adapter. However, not all of this information is intended for use by the `Builder` method. The only two fields relevant here are `config.Endpoint` and `config.ExtraAdapterInfo`:
-- `config.Endpoint` is the base url of your bidding server and may be interpreted as either a literal address or as a templated macro to support dynamic domains or dynamic paths.
+- `config.Endpoint` is the base url of your bidding server and may be interpreted as either a literal address or as a templated macro to support dynamic paths.
 - `config.ExtraAdapterInfo` is an optional setting may be used for any other values your adapter may need, such as an application token or publisher allow/deny list. You may interpret this string however you like, although JSON is a common choice.
 
 The `Builder` method is expected to return an error if either the `config.Endpoint` or the `config.ExtraAdapterInfo` values are invalid or cannot be parsed. Errors will be surfaced to the host during application startup as a fatal error.