Remove obsolete gnome-session-classic shell wrapper hack

Closes: #726065

debian/patches/gnome-session-classic-wrapper-script.patch

@@ -1,30 +0,0 @@
-From: Michael Biebl <biebl@debian.org>
-Date: Tue, 30 Jan 2018 09:04:03 +0000
-Subject: Use a wrapper script to start GNOME classic session
-
-Xsession currently doesn't allow passing more then one argument, as it
-otherwise fails with
-Xsession: unable to launch "gnome-session --session classic" X session ---
-"gnome-session --session classic" not found; falling back to default session.
-
-This is due to [1]. Add a wrapper script to start the GNOME classic session
-as a workaround. Once [1] is fixed, this should be removed again.
-
-[1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=653327.
----
- data/gnome-classic.desktop.in | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/data/gnome-classic.desktop.in b/data/gnome-classic.desktop.in
-index 13da2b5..d627655 100644
---- a/data/gnome-classic.desktop.in
-+++ b/data/gnome-classic.desktop.in
-@@ -1,7 +1,7 @@
- [Desktop Entry]
- Name=GNOME Classic
- Comment=This session logs you into GNOME Classic
--Exec=env GNOME_SHELL_SESSION_MODE=classic gnome-session
-+Exec=gnome-session-classic
- TryExec=gnome-session
- Type=Application
- DesktopNames=GNOME-Classic;GNOME;

debian/patches/series

@@ -1 +0,0 @@
-gnome-session-classic-wrapper-script.patch