start of wiring for configurable context

generate/testdata/SimpleQuery.graphql.go

@@ -3,8 +3,6 @@ package test
 // Code generated by github.com/Khan/genql, DO NOT EDIT.
 
 import (
-	"context"
-
 	"github.com/Khan/genql/graphql"
 )
 
@@ -18,7 +16,7 @@ type SimpleQueryUser struct {
 
 func SimpleQuery(client *graphql.Client) (*SimpleQueryResponse, error) {
 	var retval SimpleQueryResponse
-	err := client.MakeRequest(context.Background(), `
+	err := client.MakeRequest(nil, `
 query SimpleQuery {
 	user {
 		id