[gnome-flashback/submodule] remove submodule

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 580dda7227bda00906ddcb04ebebdf2e6821498a
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Thu Nov 24 21:47:33 2016 +0200

    remove submodule

 .gitmodules                         |    3 ---
 gnome-flashback/libsound-applet/gvc |    1 -
 2 files changed, 0 insertions(+), 4 deletions(-)
---
diff --git a/.gitmodules b/.gitmodules
index ebbfc19..e69de29 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +0,0 @@
-[submodule "gnome-flashback/libsound-applet/gvc"]
-       path = gnome-flashback/libsound-applet/gvc
-       url = git://git.gnome.org/libgnome-volume-control