contrib/.gitattributes: remove

Now that licensing of notmuch-deliver has been harmonized with
notmuch, there is no reason not to export it.

diff --git a/contrib/.gitattributes b/contrib/.gitattributes
deleted file mode 100644 (file)
index 3d57a08..0000000
--- a/contrib/.gitattributes
+++ /dev/null
@@ -1 +0,0 @@
-notmuch-deliver export-ignore