Drop references to ubuntu-gnome which is not a current flavor.

debian/changelog

@@ -1,3 +1,9 @@
+livecd-rootfs (24.04.35) UNRELEASED; urgency=medium
+
+  * Drop references to ubuntu-gnome which is not a current flavor.
+
+ -- Steve Langasek <steve.langasek@ubuntu.com>  Thu, 15 Feb 2024 14:20:36 -0800
+
 livecd-rootfs (24.04.34) noble; urgency=medium
 
   [ Michael Hudson-Doyle ]

debian/tests/default-bootstraps

@@ -28,7 +28,6 @@ ALL_TRIPLETS="
  ubuntu-cpc::ubuntu-cpc
  ubuntu-cpc:minimized:ubuntu-cpc
  ubuntu-dvd::
- ubuntu-gnome::
  ubuntukylin::
  ubuntu-mate::
  ubuntu-mate-core::

live-build/auto/config

@@ -637,7 +637,7 @@ case $PROJECT in
 	ubuntu-server|ubuntu-mini-iso)
 		COMPONENTS='main'
 		;;
-	edubuntu|kubuntu|ubuntu-budgie|ubuntu-gnome|ubuntucinnamon|ubuntukylin)
+	edubuntu|kubuntu|ubuntu-budgie|ubuntucinnamon|ubuntukylin)
 		COMPONENTS='main restricted universe'
 		;;
 	lubuntu|ubuntu-mate|ubuntu-unity|ubuntustudio-dvd|xubuntu)
@@ -874,7 +874,7 @@ case $PROJECT in
 			https://git.launchpad.net/subiquity po config/catalog-translations
 		;;
 
-	lubuntu|ubuntu-gnome|ubuntu-unity|ubuntukylin)
+	lubuntu|ubuntu-unity|ubuntukylin)
 		add_task install minimal standard ${PROJECT}-desktop
 		LIVE_TASK=${PROJECT}-live
 		;;