Removing unused import, 'make pyflakes' is now clean.

bin/ansible-doc

@@ -20,16 +20,11 @@
 
 import os
 import sys
-import yaml
-import json
-import ast
 import textwrap
 import re
 import optparse
-import time
 import datetime
 from ansible import utils
-from ansible import errors
 from ansible.utils import module_docs
 import ansible.constants as C
 from ansible.utils import version

lib/ansible/callbacks.py

@@ -22,7 +22,6 @@ import os
 import subprocess
 import os.path
 from ansible.color import stringc
-import ansible.constants as C
 
 cowsay = None
 if os.getenv("ANSIBLE_NOCOWS") is not None: