[gnome-builder] Revert "GVls plugin: mark as not required"

[Christian Hergert <chergert src gnome org>]

commit c2f296f5078e701919dea3d468c7135186bb9c9e
Author: Christian Hergert <chergert redhat com>
Date:   Sat Dec 14 12:41:46 2019 -0800

    Revert "GVls plugin: mark as not required"
    
    This reverts commit 98af6ae66684427018fb451c5b5f61f3d8214e3c.

 src/plugins/gvls/meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/plugins/gvls/meson.build b/src/plugins/gvls/meson.build
index 9e7d95a0d..86295da69 100644
--- a/src/plugins/gvls/meson.build
+++ b/src/plugins/gvls/meson.build
@@ -10,6 +10,6 @@ configure_file(
     install_dir: plugindir,
 )
 
-gvls_stdio_server = find_program('org.gnome.gvsl.stdio.Server', false)
+gvls_stdio_server = find_program('org.gnome.gvsl.stdio.Server')
 
 endif