langserver: correct handling of vendor repositories
langserver: correct handling of vendor repositories

The spec no longer states anything like that, and we wish to include vendor
package references in the results since everything is done on-the-fly now.

sourcegraph/go-langserver,lambdalab/go-langserver,sourcegraph/go-langserver,sourcegraph/go-langserver,lambdalab/go-langserver,lambdalab/go-langserver