Remove eventlet monkey patch in mistral __init__

Eventlet monkey patch in mistral/__init__.py leads to "unable to
switch thread" error when hosting the mistral API under apache.

Change-Id: Ib1fa4c2522a4afa0635cc9fee9fac02e610414de

mistral/__init__.py

@@ -1,25 +0,0 @@
-# Copyright 2015 - Mirantis, Inc.
-#
-#    Licensed under the Apache License, Version 2.0 (the "License");
-#    you may not use this file except in compliance with the License.
-#    You may obtain a copy of the License at
-#
-#        http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS,
-#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#    See the License for the specific language governing permissions and
-#    limitations under the License.
-
-import eventlet
-import sys
-
-
-eventlet.monkey_patch(
-    os=True,
-    select=True,
-    socket=True,
-    thread=False if '--use-debugger' in sys.argv else True,
-    time=True
-)

mistral/tests/__init__.py

@@ -0,0 +1,25 @@
+# Copyright 2015 - Mirantis, Inc.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License");
+#    you may not use this file except in compliance with the License.
+#    You may obtain a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS,
+#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#    See the License for the specific language governing permissions and
+#    limitations under the License.
+
+import eventlet
+import sys
+
+
+eventlet.monkey_patch(
+    os=True,
+    select=True,
+    socket=True,
+    thread=False if '--use-debugger' in sys.argv else True,
+    time=True
+)