library: remove unused module import

Move the import at the top of the file and remove unused module import.

- E402 module level import not at top of file
- F401 'xxxx' imported but unused

This also removes the '# noqa E402' statement from the code.

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit 2138a00a32)

library/ceph_key.py

@@ -17,6 +17,15 @@
 from __future__ import absolute_import, division, print_function
 __metaclass__ = type
 
+from ansible.module_utils.basic import AnsibleModule
+import datetime
+import json
+import os
+import struct
+import time
+import base64
+import socket
+
 
 ANSIBLE_METADATA = {
     'metadata_version': '1.1',
@@ -175,17 +184,6 @@ caps:
 
 RETURN = '''#  '''
 
-from ansible.module_utils.basic import AnsibleModule  # noqa: E402
-import datetime  # noqa: E402
-import grp  # noqa: E402
-import json  # noqa: E402
-import os  # noqa: E402
-import pwd  # noqa: E402
-import stat  # noqa: E402
-import struct  # noqa: E402
-import time  # noqa: E402
-import base64  # noqa: E402
-import socket  # noqa: E402
 
 CEPH_INITIAL_KEYS = ['client.admin', 'client.bootstrap-mds', 'client.bootstrap-mgr',  # noqa: E501
                      'client.bootstrap-osd', 'client.bootstrap-rbd', 'client.bootstrap-rbd-mirror', 'client.bootstrap-rgw']  # noqa: E501

library/ceph_volume.py

@@ -1,5 +1,6 @@
 #!/usr/bin/python
 
+from ansible.module_utils.basic import AnsibleModule
 import datetime
 import copy
 import json
@@ -179,9 +180,6 @@ EXAMPLES = '''
 '''
 
 
-from ansible.module_utils.basic import AnsibleModule  # noqa: E402
-
-
 def fatal(message, module):
     '''
     Report a fatal error and exit