[gnome-books] meson: remove positional args from i18n.merge_file

[Jan Tojnar <jtojnar src gnome org>]

commit 207b81a3c925f5060ff8eab10e6234a4b55da794
Author: Michal Vasilek <michal vasilek cz>
Date:   Wed Mar 9 17:46:00 2022 +0100

    meson: remove positional args from i18n.merge_file
    
    This causes the build to fail with meson 0.61+

 data/meson.build | 2 --
 1 file changed, 2 deletions(-)
---
diff --git a/data/meson.build b/data/meson.build
index bc6edfb4..5061554d 100644
--- a/data/meson.build
+++ b/data/meson.build
@@ -54,7 +54,6 @@ sources += gnome.compile_resources(
 appdata = 'org.gnome.Books.appdata.xml'
 
 appdata_file = i18n.merge_file(
-  appdata,
   input: appdata + '.in',
   output: appdata,
   po_dir: po_dir,
@@ -74,7 +73,6 @@ if appstream_util.found()
 desktop = 'org.gnome.Books.desktop'
 
 desktop_file = i18n.merge_file(
-  desktop,
   type: 'desktop',
   input: desktop + '.in',
   output: desktop,