meson: Remove GIR init section

Clapper GStreamer plugin is not part of GObject Introspection,
so no need to init GStreamer when compiling bindings.

src/lib/clapper-gtk/meson.build

@@ -176,7 +176,6 @@ if build_gir
       clappergtk_enums,
     ],
     extra_args: [
-      gir_init_section,
       '--quiet',
       '--warn-all',
       '-DCLAPPER_GTK_COMPILATION',

src/lib/clapper/meson.build

@@ -236,7 +236,6 @@ if build_gir
       clapper_enums,
     ],
     extra_args: [
-      gir_init_section,
       '--quiet',
       '--warn-all',
       '-DCLAPPER_COMPILATION',

src/lib/meson.build

@@ -4,12 +4,6 @@ build_gir = (gir.found() and not get_option('introspection').disabled())
 vapigen = find_program('vapigen', required: get_option('vapi'))
 build_vapi = (vapigen.found() and not get_option('vapi').disabled())
 
-gir_init_section = '--add-init-section=extern void gst_init(gint*,gchar**);' + \
-  'g_setenv("GST_REGISTRY_1.0", "@0@", TRUE);'.format(meson.current_build_dir() + '/gir_empty_registry.reg') + \
-  'g_setenv("GST_PLUGIN_PATH_1_0", "", TRUE);' + \
-  'g_setenv("GST_PLUGIN_SYSTEM_PATH_1_0", "", TRUE);' + \
-  'gst_init(NULL,NULL);'
-
 subdir('gst')
 subdir('clapper')
 subdir('clapper-gtk')