gnu: Remove h5check.

The package has no dependents and appears to be unmaintained. The source
code has vanished under the given URL. According to
   https://issues.guix.gnu.org/64448
it does not compile any more with current versions of hdf5.

* gnu/packages/maths.scm (h5check): Delete variable.

Change-Id: Ia7ced02059734cf8a5a2db39bbe0f1b38f67df12

gnu/packages/maths.scm

@@ -2143,26 +2143,6 @@ installing this filter, you can read and write HDF5 files with
 Blosc-compressed datasets.")
     (license license:expat)))
 
-(define-public h5check
-  (package
-    (name "h5check")
-    (version "2.0.1")
-    (source
-     (origin
-       (method url-fetch)
-       (uri (string-append "https://www.hdfgroup.org/ftp/HDF5/tools/"
-                           "h5check/src/h5check-" version ".tar.gz"))
-       (sha256
-        (base32
-         "1gm76jbwhz9adbxgn14zx8cj33dmjdr2g5xcy0m9c2gakp8w59kj"))))
-    (build-system gnu-build-system)
-    (inputs (list hdf5-1.8))                ;h5cc for tests
-    (home-page "https://www.hdfgroup.org/products/hdf5_tools/h5check.html")
-    (synopsis "HDF5 format checker")
-    (description "@code{h5check} is a validation tool for verifying that an
-HDF5 file is encoded according to the HDF File Format Specification.")
-    (license (license:x11-style "file://COPYING"))))
-
 (define-public itex2mml
   (package
     (name "itex2mml")