Use unittest.mock instead of third party mock

Now that we no longer support py27, we can use the standard library
unittest.mock module instead of the third party mock lib.

Change-Id: I9f6ec4261e9d1aa5921706ace8b5c4a66f0d7021
Signed-off-by: Sean McGinnis <sean.mcginnis@gmail.com>

sahara_plugin_cdh/tests/unit/plugins/cdh/base_plugin_utils_test.py

@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import mock
+from unittest import mock
 
 from sahara.plugins import utils
 from sahara_plugin_cdh.i18n import _

sahara_plugin_cdh/tests/unit/plugins/cdh/test_cloudera_utils.py

@@ -13,8 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import mock
 import testtools
+from unittest import mock
 
 from sahara_plugin_cdh.plugins.cdh import cloudera_utils as cu
 from sahara_plugin_cdh.tests.unit import base

sahara_plugin_cdh/tests/unit/plugins/cdh/test_confighints_helper.py

@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import mock
+from unittest import mock
 
 from sahara_plugin_cdh.plugins.cdh import confighints_helper as ch_helper
 from sahara_plugin_cdh.tests.unit import base as sahara_base

sahara_plugin_cdh/tests/unit/plugins/cdh/test_health.py

@@ -13,7 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import mock
+from unittest import mock
+
 import six
 import testtools
 

sahara_plugin_cdh/tests/unit/plugins/cdh/v5_11_0/test_deploy.py

@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import mock
+from unittest import mock
 
 from sahara_plugin_cdh.plugins.cdh.v5_11_0 import deploy
 from sahara_plugin_cdh.tests.unit import base

sahara_plugin_cdh/tests/unit/plugins/cdh/v5_11_0/test_edp_engine.py

@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import mock
+from unittest import mock
 
 from sahara.plugins import base as pb
 from sahara.plugins import edp

sahara_plugin_cdh/tests/unit/plugins/cdh/v5_11_0/test_spark_engine.py

@@ -13,8 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import mock
 import testtools
+from unittest import mock
 
 from sahara.plugins import base as pb
 from sahara.plugins import conductor

sahara_plugin_cdh/tests/unit/plugins/cdh/v5_11_0/test_versionhandler.py

@@ -13,7 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import mock
+from unittest import mock
+
 import six
 
 from sahara.plugins import base as pb

sahara_plugin_cdh/tests/unit/plugins/cdh/v5_7_0/test_deploy.py

@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import mock
+from unittest import mock
 
 from sahara_plugin_cdh.plugins.cdh.v5_7_0 import deploy
 from sahara_plugin_cdh.tests.unit import base

sahara_plugin_cdh/tests/unit/plugins/cdh/v5_7_0/test_edp_engine.py

@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import mock
+from unittest import mock
 
 from sahara.plugins import base as pb
 from sahara.plugins import edp

sahara_plugin_cdh/tests/unit/plugins/cdh/v5_7_0/test_spark_engine.py

@@ -13,8 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import mock
 import testtools
+from unittest import mock
 
 from sahara.plugins import base as pb
 from sahara.plugins import conductor

sahara_plugin_cdh/tests/unit/plugins/cdh/v5_7_0/test_versionhandler.py

@@ -13,7 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import mock
+from unittest import mock
+
 import six
 
 from sahara.plugins import base as pb

sahara_plugin_cdh/tests/unit/plugins/cdh/v5_9_0/test_deploy.py

@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import mock
+from unittest import mock
 
 from sahara_plugin_cdh.plugins.cdh.v5_9_0 import deploy
 from sahara_plugin_cdh.tests.unit import base

sahara_plugin_cdh/tests/unit/plugins/cdh/v5_9_0/test_edp_engine.py

@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import mock
+from unittest import mock
 
 from sahara.plugins import base as pb
 from sahara.plugins import edp

sahara_plugin_cdh/tests/unit/plugins/cdh/v5_9_0/test_spark_engine.py

@@ -13,8 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import mock
 import testtools
+from unittest import mock
 
 from sahara.plugins import base as pb
 from sahara.plugins import conductor

sahara_plugin_cdh/tests/unit/plugins/cdh/v5_9_0/test_versionhandler.py

@@ -13,7 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import mock
+from unittest import mock
+
 import six
 
 from sahara.plugins import base as pb

test-requirements.txt

@@ -9,7 +9,6 @@ bashate>=0.5.1 # Apache-2.0
 coverage!=4.4,>=4.0 # Apache-2.0
 doc8>=0.6.0 # Apache-2.0
 fixtures>=3.0.0 # Apache-2.0/BSD
-mock>=2.0.0 # BSD
 oslotest>=3.2.0 # Apache-2.0
 stestr>=1.0.0 # Apache-2.0
 pylint==1.4.5 # GPLv2