[totem] build: Removed plugins_vala_sources

[Bastien Nocera <hadess src gnome org>]

commit e5e85f89d9a8035842764138465a536794b5048e
Author: Iñigo Martínez <inigomartinez gmail com>
Date:   Sun Jun 25 12:00:02 2017 +0200

    build: Removed plugins_vala_sources
    
    Removed plugins_vala_sources variable which is not necessary any
    more.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=784179

 src/plugins/meson.build              |    2 --
 src/plugins/rotation/meson.build     |    2 +-
 src/plugins/sample-vala/meson.build  |    4 +---
 src/plugins/zeitgeist-dp/meson.build |    2 +-
 4 files changed, 3 insertions(+), 7 deletions(-)
---
diff --git a/src/plugins/meson.build b/src/plugins/meson.build
index 9aec66c..83d76d8 100644
--- a/src/plugins/meson.build
+++ b/src/plugins/meson.build
@@ -129,8 +129,6 @@ if plugins_option != 'none'
       '--pkg=@0@-@1@'.format(totem_gir_ns, totem_api_version)
     ]
 
-    plugins_vala_sources = []
-
     plugins += [
       'rotation',
       'sample-vala'
diff --git a/src/plugins/rotation/meson.build b/src/plugins/rotation/meson.build
index 438b9f9..14025f6 100644
--- a/src/plugins/rotation/meson.build
+++ b/src/plugins/rotation/meson.build
@@ -16,7 +16,7 @@ plugin_deps = [
 
 shared_module(
   plugin_name,
-  sources: plugins_vala_sources + plugin_files,
+  sources: plugin_files,
   include_directories: plugins_incs + [
     backend_inc,
     src_inc
diff --git a/src/plugins/sample-vala/meson.build b/src/plugins/sample-vala/meson.build
index 45cbb79..fca79d3 100644
--- a/src/plugins/sample-vala/meson.build
+++ b/src/plugins/sample-vala/meson.build
@@ -11,9 +11,7 @@ plugin_deps = [
 
 shared_module(
   plugin_name,
-  sources: plugins_vala_sources + [
-    'totem-' + plugin_name + '-plugin.vala'
-  ],
+  sources: 'totem-' + plugin_name + '-plugin.vala',
   include_directories: plugins_incs,
   dependencies: plugin_deps + plugins_vala_deps,
   c_args: plugins_cflags + plugins_vala_flags,
diff --git a/src/plugins/zeitgeist-dp/meson.build b/src/plugins/zeitgeist-dp/meson.build
index 059d742..d89d9ad 100644
--- a/src/plugins/zeitgeist-dp/meson.build
+++ b/src/plugins/zeitgeist-dp/meson.build
@@ -16,7 +16,7 @@ plugin_deps = [
 
 shared_module(
   'totem-' + plugin_name + '-plugin',
-  sources: plugins_vala_sources + plugin_files,
+  sources: plugin_files,
   include_directories: plugins_incs + [
     backend_inc,
     src_inc