gnu: Remove superfluous "linux-libre-headers" inputs.

This input is already propagated from glibc.

* gnu/packages/chromium.scm (ungoogled-chromium)[inputs]: Remove LINUX-LIBRE-HEADERS-5.10.
* gnu/packages/linux.scm (btrfs-progs)[native-inputs]: Likewise.
* gnu/packages/accessibility.scm (brltty)[inputs]: Remove LINUX-LIBRE-HEADERS.
* gnu/packages/graphics.scm (directfb)[inputs]: Likewise.
* gnu/packages/gstreamer.scm (libdc1394)[inputs]: Likewise.
* gnu/packages/linux.scm (python-evdev)[native-inputs]: Likewise.
(bcc, bpftrace)[inputs]: Likewise.
* gnu/packages/networking.scm (lksctp-tools)[inputs]: Likewise.
* gnu/packages/video.scm (tslib)[inputs]: Likewise.
* gnu/packages/web-browsers.scm (links)[native-inputs]: Likewise.
* gnu/packages/cdrom.scm (cdrtools)[inputs]: Likewise.
[arguments]: Adjust accordingly.
* gnu/packages/lirc.scm (lirc)[inputs, arguments]: Likewise.
* gnu/packages/vpn.scm (xl2tpd)[inputs, arguments]: Likewise.

gnu/packages/accessibility.scm

@@ -182,7 +182,6 @@ (define-public brltty
        ("icu" ,icu4c)
        ("libbraille" ,libbraille)
        ("libpcre2" ,pcre2)
-       ("linux-headers" ,linux-libre-headers)
        ("louis" ,liblouis)
        ("ncurses" ,ncurses)
        ("polkit" ,polkit)

gnu/packages/cdrom.scm

@@ -318,8 +318,6 @@ (define-public cdrtools
               (patches (search-patches "cdrtools-3.01-mkisofs-isoinfo.patch"))))
     (build-system gnu-build-system)
     ;; XXX cdrtools bundles a modified, relicensed early version of cdparanoia.
-    (inputs
-     `(("linux-headers" ,linux-libre-headers)))
     (arguments
      `(#:make-flags
        (list "RM=rm" "LN=ln" "SYMLINK=ln -s"
@@ -336,7 +334,7 @@ (define-public cdrtools
            (lambda _
              (substitute* "autoconf/configure"
                (("/usr/src/linux")
-                (assoc-ref %build-inputs "linux-headers")))
+                (assoc-ref %build-inputs "kernel-headers")))
              #t))
          (add-before 'build 'substitute-dirs
            (lambda _

gnu/packages/chromium.scm

@@ -874,9 +874,6 @@ (define-public ungoogled-chromium
        ("libxscrnsaver" ,libxscrnsaver)
        ("libxslt" ,libxslt)
        ("libxtst" ,libxtst)
-       ;; Newer kernel headers are required for userfaultfd support; remove
-       ;; after 'core-updates' merge.
-       ("linux-libre-headers" ,linux-libre-headers-5.10)
        ("mesa" ,mesa)
        ("minizip" ,minizip)
        ("mit-krb5" ,mit-krb5)

gnu/packages/graphics.scm

@@ -182,7 +182,6 @@ (define-public directfb
        ("libcddb" ,libcddb)
        ("libdrm" ,libdrm)
        ("libtimidity" ,libtimidity)
-       ("linux-headers" ,linux-libre-headers)
        ("mad" ,libmad)
        ("mng" ,libmng)
        ("mpeg2" ,libmpeg2)

gnu/packages/gstreamer.scm

@@ -155,7 +155,6 @@ (define-public libdc1394
            libraw1394
            libusb
            libxv
-           linux-libre-headers
            mesa
            sdl
            v4l-utils))

gnu/packages/linux.scm

@@ -3879,8 +3879,6 @@ (define-public python-evdev
        (sha256
         (base32 "0kb3636yaw9l8xi8s184w0r0n9ic5dw3b8hx048jf9fpzss4kimi"))))
     (build-system python-build-system)
-    (native-inputs
-     `(("kernel-headers" ,linux-libre-headers)))
     (arguments
      `(#:tests? #f                      ;no rule for tests
        #:phases
@@ -5456,9 +5454,6 @@ (define-public btrfs-progs
                      ("asciidoc" ,asciidoc)
                      ("python" ,python)
                      ("xmlto" ,xmlto)
-                     ;; Remove this input entirely when the default headers
-                     ;; version provides blk_zone.capacity (>= 5.9).
-                     ("linux-libre-headers" ,linux-libre-headers-5.10)
                      ;; For building documentation.
                      ("libxml2" ,libxml2)
                      ("docbook-xsl" ,docbook-xsl)
@@ -8458,7 +8453,6 @@ (define-public bcc
        ;; archives, only object files.
        ;; https://github.com/iovisor/bcc/issues/504
        ("elfutils" ,elfutils)
-       ("linux-libre-headers" ,linux-libre-headers)
        ("luajit" ,luajit)
        ("python-wrapper" ,python-wrapper)))
     (arguments
@@ -8533,7 +8527,7 @@ (define-public bpftrace
     (native-inputs
      (list bison flex))
     (inputs
-     (list bcc clang-toolchain elfutils libbpf linux-libre-headers))
+     (list bcc clang-toolchain elfutils libbpf))
     (arguments
      `(#:tests? #f ;Tests require googletest sources.
        #:configure-flags

gnu/packages/lirc.scm

@@ -69,7 +69,7 @@ (define-public lirc
            (lambda* (#:key inputs #:allow-other-keys)
              ;; 'lirc-make-devinput' script assumes that linux headers
              ;; are placed in "/usr/...".
-             (let ((headers (assoc-ref inputs "linux-headers")))
+             (let ((headers (assoc-ref inputs "kernel-headers")))
                (substitute* "tools/lirc-make-devinput"
                  (("/usr/include") (string-append headers "/include"))))
              #t))
@@ -89,7 +89,6 @@ (define-public lirc
     (inputs
      `(("libx11" ,libx11)
        ("libusb-compat" ,libusb-compat)
-       ("linux-headers" ,linux-libre-headers)
        ("alsa-lib" ,alsa-lib)
        ("python" ,python)))
     (home-page "https://www.lirc.org/")

gnu/packages/networking.scm

@@ -494,8 +494,6 @@ (define-public lksctp-tools
     (build-system gnu-build-system)
     (native-inputs
      (list autoconf automake libtool pkg-config))
-    (inputs
-     (list linux-libre-headers))
     (synopsis
      "@acronym{SCTP, Stream Control Transmission Protocol} helpers for Linux")
     (description

gnu/packages/video.scm

@@ -645,8 +645,7 @@ (define-public tslib
     (native-inputs
      (list autoconf automake libtool pkg-config))
     (inputs
-     `(("linux-headers" ,linux-libre-headers)
-       ("sdl2" ,sdl2)))
+     `(("sdl2" ,sdl2)))
     (synopsis "Touchscreen access library")
     (description "TSLib is a cross-platform library that provides access to
 touchscreen devices and the ability to apply filters to their input events.")

gnu/packages/vpn.scm

@@ -1083,10 +1083,10 @@ (define-public xl2tpd
                         (("/usr/sbin/pppd")
                          (search-input-file inputs "/sbin/pppd")))
                       (setenv "KERNELSRC"
-                              (assoc-ref inputs "linux-libre-headers"))
+                              (assoc-ref inputs "kernel-headers"))
                       #t)))
        #:tests? #f))                    ; no tests provided
-    (inputs (list libpcap linux-libre-headers ppp))
+    (inputs (list libpcap ppp))
     (home-page "https://www.xelerance.com/software/xl2tpd/")
     (synopsis "Layer 2 Tunnelling Protocol Daemon (RFC 2661)")
     (description

gnu/packages/web-browsers.scm

@@ -181,7 +181,7 @@ (define-public links
                (invoke "./configure"
                        (string-append "--prefix=" out)
                        "--enable-graphics")))))))
-    (native-inputs (list linux-libre-headers pkg-config))
+    (native-inputs (list pkg-config))
     (inputs `(("gpm" ,gpm)
               ("libevent" ,libevent)
               ("libjpeg" ,libjpeg-turbo)