Merge pull request #904 from lmr/unused-imports-2015-12-2

avocado: Fixing unused imports

avocado/core/remote/__init__.py

@@ -15,3 +15,5 @@
 from .test import RemoteTest
 from .result import RemoteTestResult, VMTestResult
 from .runner import RemoteTestRunner
+
+__all__ = ['RemoteTestResult', 'VMTestResult', 'RemoteTestRunner', 'RemoteTest']

avocado/core/remote/runner.py

@@ -16,7 +16,6 @@
 import sys
 import json
 import os
-import pipes
 import re
 import logging
 

avocado/core/runner.py

@@ -29,7 +29,6 @@ from . import test
 from . import exceptions
 from . import output
 from . import status
-from . import exit_codes
 from .loader import loader
 from ..utils import wait
 from ..utils import stacktrace