Remove unused variable

o heat/common/config.py:DEFAULT_PORT = 8000

  This variable was removed in the following commit.

    commit 34e47b64d926c055d9895c5b3f27949eaca68999
    Author: Steve Baker <sbaker@redhat.com>
    Date:   Mon Jul 22 16:01:44 2013 +1200

        Move heat-cfn, heat-boto, heat-watch to new repo

Change-Id: Iab6213eba1422882c92bd16a3351df19869aa9f3
Propagate files in nested stacks

Share files from the parent template in StackResource, to be able to
reference files in resources like AutoScalingGroup

Closes-Bug: #1294033
Change-Id: Id325690e4b1c42ef2b6463769da0ae99571e7a56
Order imports in alphabetical order (7/9)

This patch is one in a series to re-enable H306 style check rule
(imports are in alphabetical order). It touches roughly half of tests
(up to and including test_m*).

Implements: blueprint reduce-flake8-ignored-rules (partial)
Change-Id: Id1e10f7a519ceeb4339488760b36950440461edb
Merge "Propagate files in nested stacks"
Merge "Order imports in alphabetical order (7/9)"
Merge "Remove unused variable"