remove simplejson imports

Fixes: https://pagure.io/koji/issue/727

builder/kojid

@@ -30,10 +30,7 @@ import koji.plugin
 import koji.util
 import koji.tasks
 import glob
-try:
-    import json
-except ImportError:  # pragma: no cover
-    import simplejson as json
+import json
 import logging
 import logging.handlers
 from koji.daemon import incremental_upload, log_output, TaskManager, SCM

docs/source/writing_koji_code.rst

@@ -674,7 +674,6 @@ You will need to install the following packages to actually run the tests.
  * ``python-coverage``
  * ``python-krbV``
  * ``python-mock``
- * ``python-simplejson``
  * ``python-psycopg2``
  * ``python-requests``
  * ``python-qpid-proton``

hub/kojihub.py

@@ -41,6 +41,7 @@ from koji.util import sha1_constructor
 from koji.util import dslice
 from koji.util import multi_fnmatch
 from koji.util import safer_move
+import json
 import os
 import re
 import rpm
@@ -59,11 +60,6 @@ import zipfile
 import koji.xmlrpcplus
 from koji.context import context
 
-try:
-    import json
-except ImportError:  # pragma: no cover
-    import simplejson as json
-
 
 logger = logging.getLogger('koji.hub')