cinnamon-session: Remove unused dbus-glib

* dbus-glib gone in https://github.com/linuxmint/cinnamon-session/commit/2d49e8ea97a00b1d8c4501376de07ce2bb2239f8.
* elogind is already optional: there is "elogind = dependency('', required: false)" when it is not available.
* glib is listed twice in buildInputs.

pkgs/by-name/ci/cinnamon-session/0001-Use-dbus_glib-instead-of-elogind.patch

@@ -1,38 +0,0 @@
-From eb4a1eae754f222b1be902c2f050704fb0511cf7 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Maciej=20Kr=C3=BCger?= <mkg20001@gmail.com>
-Date: Sat, 5 Sep 2020 23:19:23 +0200
-Subject: [PATCH] Use dbus_glib instead of elogind
-
----
- cinnamon-session/meson.build | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/cinnamon-session/meson.build b/cinnamon-session/meson.build
-index d8428dc..1f15115 100644
---- a/cinnamon-session/meson.build
-+++ b/cinnamon-session/meson.build
-@@ -56,6 +56,7 @@ cinnamon_session_sources = [
-   gdbus_sources,
- ]
- 
-+dbus_glib = dependency('dbus-glib-1')
- executable('cinnamon-session-binary',
-   cinnamon_session_sources,
-   dependencies: [
-@@ -74,7 +75,7 @@ executable('cinnamon-session-binary',
-     xext,
-     xrender,
-     xtest,
--    elogind,
-+    dbus_glib,
-   ],
-   link_with: [
-     libegg,
-@@ -98,4 +99,3 @@ foreach unit: units
-     dependencies: unit[2]
-   )
- endforeach
--
--- 
-2.28.0
-

pkgs/by-name/ci/cinnamon-session/package.nix

@@ -3,7 +3,6 @@
   cinnamon-desktop,
   cinnamon-settings-daemon,
   cinnamon-translations,
-  dbus-glib,
   glib,
   gsettings-desktop-schemas,
   gtk3,
@@ -43,10 +42,6 @@ stdenv.mkDerivation rec {
     hash = "sha256-4uTKcmwfEytoAy4CFiOedYJqmPtBFBHk0P1gEGgm6pU=";
   };
 
-  patches = [
-    ./0001-Use-dbus_glib-instead-of-elogind.patch
-  ];
-
   buildInputs = [
     # meson.build
     cinnamon-desktop
@@ -68,8 +63,6 @@ stdenv.mkDerivation rec {
 
     # other (not meson.build)
     cinnamon-settings-daemon
-    dbus-glib
-    glib
     gsettings-desktop-schemas
     pythonEnv # for cinnamon-session-quit
   ];