Fix some nits in the crawler and elsewhere.

api/internal/crawl/crawler/github/queries.go

@@ -8,7 +8,6 @@ import (
 
 const (
 	perPageArg     = "per_page"
-	accessTokenArg = "access_token"
 )
 
 const githubMaxPageSize = 100
@@ -101,12 +100,6 @@ type RequestConfig struct {
 	perPage uint64
 }
 
-func NewRequestConfig(perPage uint64) RequestConfig {
-	return RequestConfig{
-		perPage: perPage,
-	}
-}
-
 // CodeSearchRequestWith given a list of query parameters that specify the
 // (patial) query, returns a request object with the (parital) query. Must call
 // the URL method to get the string value of the URL. See request.CopyWith, to