remove iso method as it does not work

tasks/main.yml

@@ -14,6 +14,3 @@
 
 - import_tasks: method/kexec.yml
   when: debian_installer_method == "kexec"
-
-- import_tasks: method/iso.yml
-  when: debian_installer_method == "iso"

tasks/method/iso.yml

@@ -1,28 +0,0 @@
----
-
-- name: isolinux.bin
-  copy:
-    src: /usr/lib/ISOLINUX/isolinux.bin
-    remote_src: yes
-    dest: "{{debian_installer_directory}}/isolinux.bin"
-
-- name: ldlinux.c32
-  copy:
-    src: /usr/lib/syslinux/modules/bios/ldlinux.c32
-    remote_src: yes
-    dest: "{{debian_installer_directory}}/ldlinux.c32"
-
-- name: isolinux.cfg
-  template:
-    src: isolinux.cfg.j2
-    dest: "{{debian_installer_directory}}/isolinux.cfg"
-
-- name: generate iso image
-  command: genisoimage
-    -o {{debian_installer_directory}}/installer.iso
-    -b isolinux.bin
-    -c boot.cat
-    -no-emul-boot
-    -boot-load-size 4
-    -boot-info-table
-    {{debian_installer_directory}}

templates/isolinux.cfg.j2

@@ -1,5 +0,0 @@
-{#serial 0 115200#}
-default installer
-label installer
-    kernel /linux
-    append initrd=/initrd.gz auto=true priority=critical ---{# console=ttyS0 #}