Revert change that will be handled in a separate PR

Author: danielbosnich

modules/openapi-generator/src/main/resources/go-server/controller-api.mustache

@@ -13,6 +13,8 @@ import (
 	{{/isBodyParam}}
 	"net/http"
 	"strings"
+{{#imports}}	"{{import}}"
+	{{/imports}}
 {{#hasPathParams}}
 
 {{#routers}}