gnu: Use the test-only time zone database where appropriate.

* gnu/packages/backup.scm (duplicity)[inputs]: Remove tzdata.
[native-inputs]: Add tzdata-for-tests.
* gnu/packages/finance.scm (ledger): Likewise.
* gnu/packages/compression.scm (lhasa)[native-inputs]: Use tzdata-for-tests.
* gnu/packages/cran.scm (r-rstan)[native-inputs]: Likewise.
* gnu/packages/databases.scm (mongodb)[native-inputs]: Likewise.
* gnu/packages/kde-frameworks.scm (kdelibs4support)[native-inputs]: Likewise.

gnu/packages/backup.scm

@@ -91,6 +91,7 @@
        ("par2cmdline" ,par2cmdline)
        ("python-pexpect" ,python2-pexpect)
        ("python-fasteners" ,python2-fasteners)
+       ("tzdata" ,tzdata-for-tests)
        ("mock" ,python2-mock)))
     (propagated-inputs
      `(("lockfile" ,python2-lockfile)
@@ -99,8 +100,7 @@
      `(("librsync" ,librsync-0.9)
        ("lftp" ,lftp)
        ("gnupg" ,gnupg)                 ; gpg executable needed
-       ("util-linux" ,util-linux)       ; for setsid
-       ("tzdata" ,tzdata)))
+       ("util-linux" ,util-linux)))     ; for setsid
     (arguments
      `(#:python ,python-2               ; setup assumes Python 2
        #:test-target "test"

gnu/packages/compression.scm

@@ -489,7 +489,7 @@ than gzip and 15 % smaller output than bzip2.")
                                             "/share/zoneinfo"))
              #t)))))
     (native-inputs
-     `(("tzdata" ,tzdata)))
+     `(("tzdata" ,tzdata-for-tests)))
     (home-page "https://fragglet.github.com/lhasa/")
     (synopsis "LHA archive decompressor")
     (description "Lhasa is a replacement for the Unix LHA tool, for

gnu/packages/cran.scm

@@ -20624,7 +20624,7 @@ techniques to average Bayesian predictive distributions.")
                                     "/share/zoneinfo"))
              #t)))))
     (native-inputs
-     `(("tzdata" ,tzdata)
+     `(("tzdata" ,tzdata-for-tests)
        ("pandoc" ,ghc-pandoc)))
     (propagated-inputs
      `(("r-bh" ,r-bh)

gnu/packages/databases.scm

@@ -508,7 +508,7 @@ replacement for the code@{python-memcached} library.")
        ("python" ,python-2)
        ("python2-pymongo" ,python2-pymongo)
        ("python2-pyyaml" ,python2-pyyaml)
-       ("tzdata" ,tzdata)))
+       ("tzdata" ,tzdata-for-tests)))
     (arguments
      `(#:scons ,scons-python2
        #:phases

gnu/packages/finance.scm

@@ -241,11 +241,11 @@ and dynamically with report tools based on filtering and graphical charts.")
        ("libedit" ,libedit)
        ("mpfr" ,mpfr)
        ("python" ,python-2)
-       ("tzdata" ,tzdata)
        ("utfcpp" ,utfcpp)))
     (native-inputs
      `(("groff" ,groff)
-       ("texinfo" ,texinfo)))
+       ("texinfo" ,texinfo)
+       ("tzdata" ,tzdata-for-tests)))
     (home-page "https://ledger-cli.org/")
     (synopsis "Command-line double-entry accounting program")
     (description

gnu/packages/kde-frameworks.scm

@@ -3537,7 +3537,7 @@ workspace.")
        ("shared-mime-info" ,shared-mime-info)
        ("kjobwidgets" ,kjobwidgets) ;; required for running the tests
        ("strace" ,strace)
-       ("tzdata" ,tzdata)))
+       ("tzdata" ,tzdata-for-tests)))
     (propagated-inputs
      ;; These are required to be installed along with this package, see
      ;; lib64/cmake/KF5KDELibs4Support/KF5KDELibs4SupportConfig.cmake