[libpeas] build: fix meson warning

[Christian Hergert <chergert src gnome org>]

commit e3de9b722a7b6365d5191bdbda4349a1ea8d6722
Author: Christian Hergert <chergert redhat com>
Date:   Tue Aug 20 16:07:31 2019 +0200

    build: fix meson warning

 libpeas-gtk/meson.build | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/libpeas-gtk/meson.build b/libpeas-gtk/meson.build
index edfb2de..bf590de 100644
--- a/libpeas-gtk/meson.build
+++ b/libpeas-gtk/meson.build
@@ -46,7 +46,6 @@ install_headers(
 libpeas_gtk_test = static_library(
   package_gtk_string.strip('lib'),
   libpeas_gtk_c,
-  version: lib_version,
   include_directories: rootdir,
   dependencies: libpeas_gtk_deps,
   c_args: libpeas_gtk_c_args,