[gnome-builder] build: remove ide-vala.h from .gitignore

[Christian Hergert <chergert src gnome org>]

commit a460659b5cc78ddde30c5a9f379fd5198443d2f4
Author: Christian Hergert <chergert redhat com>
Date:   Mon Feb 22 01:43:26 2016 -0800

    build: remove ide-vala.h from .gitignore

 plugins/vala-pack/Makefile.am |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/plugins/vala-pack/Makefile.am b/plugins/vala-pack/Makefile.am
index 552df78..93864e9 100644
--- a/plugins/vala-pack/Makefile.am
+++ b/plugins/vala-pack/Makefile.am
@@ -69,8 +69,6 @@ libvala_pack_plugin_la_LDFLAGS = \
 
 include $(top_srcdir)/plugins/Makefile.plugin
 
-GITIGNOREFILES = ide-vala.h
-
 endif
 
 -include $(top_srcdir)/git.mk