Python 3: remove a useless code to safe_encode()

The safe_encode method returns bytes, so we cannot concatenate its output with
text strings. This call does not seem needed after all, so let's just remove
it.

Change-Id: I6c18427559147d4c732ff7daa6d6006e7e5f6365

Author: CyrilRoelandteNovance

openstackclient/common/utils.py

@@ -23,7 +23,6 @@
 import time
 
 from openstackclient.common import exceptions
-from openstackclient.openstack.common import strutils
 
 
 def find_resource(manager, name_or_id):
@@ -79,8 +78,7 @@ def format_dict(data):
 
     output = ""
     for s in data:
-        output = output + s + "='" + \
-            strutils.safe_encode(six.text_type(data[s])) + "', "
+        output = output + s + "='" + six.text_type(data[s]) + "', "
     return output[:-2]