[gnome-boxes] Drop already removed vapi file from Makefile

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit c4d430f8fa47b421d8f4453fc2b51a00c1bfac5a
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Mon Nov 19 22:05:15 2012 +0200

    Drop already removed vapi file from Makefile
    
    This change should have been part of commit 5896574.

 vapi/Makefile.am |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/vapi/Makefile.am b/vapi/Makefile.am
index cb51c7d..87227de 100644
--- a/vapi/Makefile.am
+++ b/vapi/Makefile.am
@@ -3,7 +3,6 @@ SUBDIRS = upstream
 
 EXTRA_DIST =					\
 	gio-2.0-workaround.vapi			\
-	libvirt-workaround.vapi			\
 	$(NULL)
 
 -include $(top_srcdir)/git.mk