[gnome-build-meta] Revert "sdk/vte: disable vala bindings"

[Rico Tzschichholz <ricotz src gnome org>]

commit d6dbdcf4be3eac21acf19b62111e5b5513b1e085
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Sat Dec 1 19:07:42 2018 +0100

    Revert "sdk/vte: disable vala bindings"
    
    https://gitlab.gnome.org/GNOME/vte/commit/53690d5cee51bdb7c3f7680d3c22b316b1086f2c
    
    This reverts commit 5f304913d29594f74ab6366a84e413f398247b14.

 elements/sdk/vte.bst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/elements/sdk/vte.bst b/elements/sdk/vte.bst
index 41b6ae5..32c24b3 100644
--- a/elements/sdk/vte.bst
+++ b/elements/sdk/vte.bst
@@ -19,4 +19,4 @@ depends:
 - filename: base-platform.bst
   junction: freedesktop-sdk.bst
 variables:
-  conf-local: --enable-introspection --disable-vala
+  conf-local: --enable-introspection=yes