grml-cheatcodes.txt: drop URL for no-longer existing live-initramfs.e…

…n.7.txt

live-initramfs-grml is live-boot-grml nowadays, though it doesn't
provide a human readable manpage/documentation.

templates/GRML/grml-cheatcodes.txt

@@ -25,7 +25,6 @@ dos                                   Boot FreeDOS
 hdt                                   Boot Hardware Detection Tool (from syslinux project)
 
 Further documentation regarding the boot process can be found at:
-* http://git.grml.org/?p=live-initramfs-grml.git;a=blob_plain;f=manpages/live-initramfs.en.7.txt;hb=HEAD
 * https://manpages.debian.org/live-boot-doc/live-boot.7.en.html
 * https://manpages.debian.org/initramfs-tools-core/initramfs-tools.7.en.html
 * https://www.kernel.org/doc/html/latest/admin-guide/kernel-parameters.html