Remove cruft

src/python/pants/backend/python/targets/python_distribution.py

@@ -5,8 +5,6 @@
 from __future__ import (absolute_import, division, generators, nested_scopes, print_function,
                         unicode_literals, with_statement)
 
-import os
-
 from pex.interpreter import PythonIdentity
 from twitter.common.collections import maybe_list
 

src/python/pants/backend/python/tasks/python_execution_task_base.py

@@ -17,7 +17,7 @@
 from pants.backend.python.targets.python_requirement_library import PythonRequirementLibrary
 from pants.backend.python.targets.python_target import PythonTarget
 from pants.backend.python.tasks2.gather_sources import GatherSources
-from pants.backend.python.tasks2.pex_build_util import has_python_sources, is_local_python_dist
+from pants.backend.python.tasks2.pex_build_util import has_python_sources
 from pants.backend.python.tasks2.resolve_requirements import ResolveRequirements
 from pants.backend.python.tasks2.resolve_requirements_task_base import ResolveRequirementsTaskBase
 from pants.build_graph.address import Address

src/python/pants/backend/python/tasks/resolve_requirements_task_base.py

@@ -53,9 +53,6 @@ def resolve_requirements(self, req_libs):
       interpreter = self.context.products.get_data(PythonInterpreter)
       path = os.path.realpath(os.path.join(self.workdir, str(interpreter.identity), target_set_id))
 
-      # Gather invalid targets so we can check whether the requirements pex should be
-      # rebuilt due to changes to PythonDistribution targets.
-      invalid_targets = [vt.target for vt in invalidation_check.invalid_vts]
       # Note that we check for the existence of the directory, instead of for invalid_vts,
       # to cover the empty case.
       if not os.path.isdir(path):