[gnome-ostree] vcs: Remove spurious this. references in module

[Colin Walters <walters src gnome org>]

commit 5cb7030194666cd329ab5c362a04bae5f6e6dc02
Author: Colin Walters <walters verbum org>
Date:   Mon Mar 11 12:40:56 2013 -0400

    vcs: Remove spurious this. references in module
    
    This breaks actually with gjs-on-js17.

 src/js/vcs.js |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/js/vcs.js b/src/js/vcs.js
index bf00e9b..a77f251 100644
--- a/src/js/vcs.js
+++ b/src/js/vcs.js
@@ -191,14 +191,14 @@ function ensureVcsMirror(mirrordir, component, cancellable,
     let [keytype, uri] = parseSrcKey(component['src']);
     if (keytype == 'git' || keytype == 'local') {
        let branch = component['branch'] || component['tag'];
-       return this._ensureVcsMirrorGit(mirrordir, uri, branch, cancellable, params);
+       return _ensureVcsMirrorGit(mirrordir, uri, branch, cancellable, params);
     } else if (keytype == 'tarball') {
        let name = component['name'];
        let checksum = component['checksum'];
        if (!checksum) {
            throw new Error("Component " + name + " missing checksum attribute");
        }
-       return this._ensureVcsMirrorTarball(mirrordir, name, uri, checksum, cancellable, params);
+       return _ensureVcsMirrorTarball(mirrordir, name, uri, checksum, cancellable, params);
     } else {
        throw new Error("Unhandled keytype=" + keytype);
     }