gnu: pciutils: Fix the conditional for the kmod input.

Fixes <https://issues.guix.gnu.org/52411>.  Thanks to Maxime Devos for
suggesting the solution.

* gnu/packages/pciutils.scm (pciutils): Delete trailing #t.

[inputs]{kmod}: Use the hurd-target? procedure in the condition, which
correctly handles the Nix system of %current-system and GNU triplet of
%current-target-system.

gnu/packages/pciutils.scm

@@ -87,8 +87,7 @@ (define-public pciutils
 
                (("^IDSDIR=.*$")
                 ;; Installation directory of 'pci.ids.gz'.
-                "IDSDIR = $(SHAREDIR)/hwdata\n"))
-             #t))
+                "IDSDIR = $(SHAREDIR)/hwdata\n"))))
          (replace 'install
            (lambda* (#:key outputs #:allow-other-keys)
              ;; Install the commands, library, and .pc files.
@@ -111,9 +110,7 @@ (define-public pciutils
     (native-inputs
      (list which pkg-config))
     (inputs
-     `(,@(if (member (or (%current-target-system)
-                         (%current-system))
-                     (package-supported-systems kmod))
+     `(,@(if (not (hurd-target?))
              `(("kmod" ,kmod))
              '())
        ,@(if (hurd-target?)