[gnome-apps-nightly/gnome-3-22] Switch polari to building from git

[Florian Müllner <fmuellner src gnome org>]

commit 5c4716d94f8d750fe7ef4974ae02630a9d288dfa
Author: Florian Müllner <fmuellner gnome org>
Date:   Tue Feb 28 18:56:57 2017 +0100

    Switch polari to building from git
    
    It already ships a manifest, so no need for duplication.

 org.gnome.Polari.app  |    2 +
 org.gnome.Polari.json |   77 -------------------------------------------------
 2 files changed, 2 insertions(+), 77 deletions(-)
---
diff --git a/org.gnome.Polari.app b/org.gnome.Polari.app
index 45241e3..cdb94a3 100644
--- a/org.gnome.Polari.app
+++ b/org.gnome.Polari.app
@@ -1,2 +1,4 @@
 ID=org.gnome.Polari
 JSON=org.gnome.Polari.json
+GITURL=git://git.gnome.org/polari
+GITBRANCH=gnome-3-22