logging: do not reference loggers in arguments and attributes

Remove logger arguments in all functions and logger attributes in all
objects, with the exception of API object logger, which is now deprecated.
Replace affected logger calls with module-level logger calls.

Reviewed-By: Martin Basti <mbasti@redhat.com>

ipalib/cli.py

@@ -23,6 +23,7 @@ Functionality for Command Line Interface.
 from __future__ import print_function
 
 import importlib
+import logging
 import textwrap
 import sys
 import getpass
@@ -58,6 +59,8 @@ from ipapython.dnsutil import DNSName
 
 import datetime
 
+logger = logging.getLogger(__name__)
+
 
 def to_cli(name):
     """
@@ -1351,13 +1354,13 @@ def run(api):
         sys.exit(api.Backend.cli.run(argv))
     except KeyboardInterrupt:
         print('')
-        api.log.info('operation aborted')
+        logger.info('operation aborted')
     except PublicError as e:
         error = e
     except Exception as e:
-        api.log.exception('%s: %s', e.__class__.__name__, str(e))
+        logger.exception('%s: %s', e.__class__.__name__, str(e))
         error = InternalError()
     if error is not None:
         assert isinstance(error, PublicError)
-        api.log.error(error.strerror)
+        logger.error(error.strerror)
         sys.exit(error.rval)