gnu: grub: Use qemu-minimal for tests.

* gnu/packages/grub.scm (qemu-for-tests): Remove variable.
(grub)[native-inputs]: Replace QEMU-FOR-TESTS with QEMU-MINIMAL.

gnu/packages/grub.scm

@@ -36,38 +36,7 @@
   #:use-module (gnu packages man)
   #:use-module (gnu packages texinfo)
   #:use-module (gnu packages ncurses)
-  #:use-module (gnu packages cdrom)
-  #:use-module (srfi srfi-1))
-
-(define qemu-for-tests
-  ;; Newer QEMU versions, such as 1.5.1, no longer support the 'shutdown'
-  ;; instruction.  This leads to test hangs, as reported at
-  ;; <https://bugs.launchpad.net/bugs/947597> and fixed at
-  ;; <http://bzr.savannah.gnu.org/lh/grub/trunk/grub/revision/4828>.
-  ;; Work around it by using an older QEMU.
-  (package (inherit qemu-minimal)
-    (version "1.3.1")
-    (source (origin
-             (method url-fetch)
-             (uri (string-append "http://wiki.qemu-project.org/download/qemu-"
-                                 version ".tar.bz2"))
-             (sha256
-              (base32
-               "1bqfrb5dlsxm8gxhkksz8qzi5fhj3xqhxyfwbqcphhcv1kpyfwip"))))
-
-    ;; With recent GLib versions, we get a test failure:
-    ;;   ERROR:tests/rtc-test.c:176:check_time: assertion failed (ABS(t - s) <= wiggle): (382597824 <= 2)
-    ;; Simply disable the tests.
-    (arguments `(#:tests? #f
-                 ,@(substitute-keyword-arguments (package-arguments qemu-minimal)
-                     ((#:phases phases)
-                      ;; We disable the tests so we also skip the phase disabling
-                      ;; the qga test, which fails due to changes in QEMU
-                      `(modify-phases ,phases
-                         (delete 'disable-test-qga))))))
-
-    ;; The manual fails to build with Texinfo 5.x.
-    (native-inputs (alist-delete "texinfo" (package-native-inputs qemu)))))
+  #:use-module (gnu packages cdrom))
 
 (define unifont
   ;; GNU Unifont, <http://gnu.org/s/unifont>.
@@ -160,7 +129,7 @@
        ;; Dependencies for the test suite.  The "real" QEMU is needed here,
        ;; because several targets are used.
        ("parted" ,parted)
-       ("qemu" ,qemu-for-tests)
+       ("qemu" ,qemu-minimal)
        ("xorriso" ,xorriso)))
     (home-page "https://www.gnu.org/software/grub/")
     (synopsis "GRand Unified Boot loader")