[libpeas] build: remove marshallers from GIR

[Christian Hergert <chergert src gnome org>]

commit d4db3e289d601432ce3743bf0439c61688aa29c8
Author: Christian Hergert <chergert redhat com>
Date:   Mon Mar 14 13:35:09 2022 -0700

    build: remove marshallers from GIR
    
    These do not belong there and are not even exported in the library.
    
    Related !33

 libpeas/meson.build | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)
---
diff --git a/libpeas/meson.build b/libpeas/meson.build
index f3199e9b..25831730 100644
--- a/libpeas/meson.build
+++ b/libpeas/meson.build
@@ -88,10 +88,6 @@ libpeas_marshal = gnome.genmarshal(
 
 libpeas_marshals_h = libpeas_marshal.get(1)
 
-libpeas_sources += [
-  libpeas_marshal,
-]
-
 install_headers(
   libpeas_public_h,
   install_dir: join_paths(
@@ -102,7 +98,7 @@ install_headers(
 
 libpeas_sha = library(
   package_string.strip('lib'),
-  libpeas_sources,
+  libpeas_sources + libpeas_marshal,
   version: lib_version,
   darwin_versions: lib_version_osx,
   include_directories: [rootdir, libpeas_srcdir],