[gnome-continuous] manifest: Build libarchive from git master

[Debarshi Ray <debarshir src gnome org>]

commit 399f32023cd069d3ab1fdfc1174d939f4987225e
Author: Debarshi Ray <debarshir gnome org>
Date:   Wed Dec 7 11:36:51 2016 +0100

    manifest: Build libarchive from git master
    
    As mentioned in the previous commit, it is not clear why we started
    building libarchive from a tag. It seems that bumping the tag to v3.2.2
    didn't cause any problems. Let's see if we can use git master now.

 manifest.json |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/manifest.json b/manifest.json
index 30ee557..fb7b82b 100644
--- a/manifest.json
+++ b/manifest.json
@@ -507,7 +507,6 @@
                 {"src": "git:https://github.com/libarchive/libarchive.git";,
                 "component": "minimal",
                 "config-opts": ["--without-lzo2"],
-                "tag": "v3.2.2",
                 "patches": ["libarchive-autogen.patch"]},
 
                 {"src": "fd-poppler:poppler",