Drop Ubuntu 24.04/23.10 Live as they not working

roles/netbootxyz/templates/menu/live-ubuntu.ipxe.j2

@@ -6,8 +6,6 @@ goto ${menu} ||
 set os Ubuntu Live
 menu ${os}
 item --gap ${os} Versions
-item noble ${space} ${os} 24.04
-item mantic ${space} ${os} 23.10
 item jammy ${space} ${os} 22.04
 item focal ${space} ${os} 20.04
 choose live_version || goto live_exit
@@ -15,22 +13,6 @@ menu ${os} ${live_version}
 item --gap ${os} Flavors
 goto ${live_version}
 
-:noble
-{% for key, value in endpoints.items() | sort %}
-{% if value.os == "ubuntu" and 'squash' in key and value.version == "24.04" %}
-item {{ key }} ${space} {{ value.os | title }} {{ value.version }} {{ value.flavor | title }}
-{% endif %}
-{% endfor %}
-goto flavor_select
-
-:mantic
-{% for key, value in endpoints.items() | sort %}
-{% if value.os == "ubuntu" and 'squash' in key and value.version == "23.10" %}
-item {{ key }} ${space} {{ value.os | title }} {{ value.version }} {{ value.flavor | title }}
-{% endif %}
-{% endfor %}
-goto flavor_select
-
 :jammy
 {% for key, value in endpoints.items() | sort %}
 {% if value.os == "ubuntu" and 'squash' in key and value.version == "22.04" %}
@@ -68,8 +50,6 @@ goto {{ value.version }}-boot
 
 :20.04-boot
 :22.04-boot
-:23.10-boot
-:24.04-boot
 imgfree
 kernel ${kernel_url}vmlinuz ip=dhcp boot=casper netboot=url url=${squash_url} {{ kernel_params }}
 initrd ${kernel_url}initrd
@@ -78,4 +58,3 @@ boot
 :live_exit
 clear menu
 exit 0
-