gnu: khal: Update to 0.9.0.

* gnu/packages/calendar.scm (khal): Update to 0.9.0
[source]: Remove obsolete patch.
* gnu/packages/patches/khal-disable-failing-tests.patch: Delete file.
* gnu/local.mk (dist_patch_DATA): Add it.

gnu/local.mk

@@ -645,7 +645,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/jbig2dec-ignore-testtest.patch		\
   %D%/packages/patches/jq-CVE-2015-8863.patch			\
   %D%/packages/patches/kdbusaddons-kinit-file-name.patch	\
-  %D%/packages/patches/khal-disable-failing-tests.patch		\
   %D%/packages/patches/khmer-use-libraries.patch                \
   %D%/packages/patches/kmod-module-directory.patch		\
   %D%/packages/patches/kobodeluxe-paths.patch			\

gnu/packages/calendar.scm

@@ -84,14 +84,13 @@ data units.")
 (define-public khal
   (package
     (name "khal")
-    (version "0.8.4")
+    (version "0.9.0")
     (source (origin
              (method url-fetch)
              (uri (pypi-uri "khal" version))
-             (patches (search-patches "khal-disable-failing-tests.patch"))
              (sha256
               (base32
-               "03vy4dp9n43w51mwqjjy08dr5nj7wxqnb085visz3j43vzm42p1f"))))
+               "138gxynw7zavwqqaw5nzmj8sbpkymmb95xzgxqbdi9fiiqm9kamr"))))
     (build-system python-build-system)
     (arguments
      `(#:phases (modify-phases %standard-phases

gnu/packages/patches/khal-disable-failing-tests.patch

@@ -1,33 +0,0 @@
-Disable some tests that are known to fail:
-
-https://github.com/pimutils/khal/issues/546
-https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=844081
-
-diff --git a/tests/khalendar_test.py b/tests/khalendar_test.py
-index fd8dcc6..17732bf 100644
---- a/tests/khalendar_test.py
-+++ b/tests/khalendar_test.py
-@@ -65,6 +65,7 @@ class TestCalendar(object):
-                 else:
-                     mtimes[cal] = mtime
- 
-+    @pytest.mark.xfail
-     def test_db_needs_update(self, coll_vdirs):
-         coll, vdirs = coll_vdirs
- 
-@@ -321,6 +322,7 @@ class TestDbCreation(object):
-             CalendarCollection(calendars, dbpath=dbpath, locale=aux.locale)
- 
- 
-+@pytest.mark.xfail
- def test_default_calendar(coll_vdirs):
-     """test if an update to the vdir is detected by the CalendarCollection"""
-     coll, vdirs = coll_vdirs
-@@ -341,6 +343,7 @@ def test_default_calendar(coll_vdirs):
-     assert len(list(coll.get_events_on(today))) == 0
- 
- 
-+@pytest.mark.xfail
- def test_only_update_old_event(coll_vdirs, monkeypatch):
-     coll, vdirs = coll_vdirs
-