* gnu/packages/linux.scm (linux-libre-5.15-source)
(linux-libre-5.10-source): Do not apply linux-libre-infodocs-target.patch.
(make-linux-libre): Remove BUILD-DOC? argument, and
adjust patches conditional.
(make-linux-libre*): Likewise. Remove build-doc? validation.
[arguments]: Move documentation related phases to the new
linux-libre-documentation.
[native-inputs]: Move the documentation related native inputs to
linux-libre-documentation.
(linux-libre-documentation): New variable.
* guix/build-system/linux-module.scm
(make-linux-module-builder) [arguments]: Do not delete build-doc and
install-doc phases, which no longer exist for linux-libre.