[gnome-build-meta/alatiera/40-alpha] Revert "Update for gtk-vnc meson options changes"

[Jordan Petridis <jpetridis src gnome org>]

commit a65d281930cfceb0fa8eb461a4bb26d1ed4b0804
Author: Jordan Petridis <jpetridis gnome org>
Date:   Fri Jan 15 00:29:57 2021 +0200

    Revert "Update for gtk-vnc meson options changes"
    
    This reverts commit 4f2f85a579600c436b4a775662dc419298e73dd6.

 elements/core-deps/gtk-vnc.bst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/elements/core-deps/gtk-vnc.bst b/elements/core-deps/gtk-vnc.bst
index 01247a4a..250cdac2 100644
--- a/elements/core-deps/gtk-vnc.bst
+++ b/elements/core-deps/gtk-vnc.bst
@@ -17,7 +17,7 @@ depends:
 - freedesktop-sdk.bst:bootstrap-import.bst
 variables:
   meson-local: >-
-    -Dintrospection=enabled
+    -Dintrospection=true
     -Dpulseaudio=enabled
     -Dsasl=enabled
-    -Dwith-vala=enabled
+    -Dwith-vala=true