Deprecated tox -downloadcache option removed

Caching is enabled by default from pip version 6.0

More info:
https://testrun.org/tox/latest/config.html#confval-downloadcache=path
https://pip.pypa.io/en/stable/reference/pip_install/#caching

Change-Id: I8524f5cd26d3c7fb76f7d727f0a2135d2b278fd2

1 files changed, 0 insertions, 3 deletions

diff --git a/tox.ini b/tox.ini
index 4040d9d..3cb4086 100644
--- a/tox.ini
+++ b/tox.ini
@@ -26,9 +26,6 @@ commands = {posargs}
 [testenv:cover]
 commands = python setup.py testr --coverage --testr-args='{posargs}'
 
-[tox:jenkins]
-downloadcache = ~/cache/pip
-
 [testenv:debug]
 commands = oslo_debug_helper -t keystoneclient/tests {posargs}