Remove pycli from keystone pips

Removed from keystone pip-requires in https://review.openstack.org/4261

Change-Id: I629881f47fa198019e60fc81ca38917fa0b60dd8
diff --git a/files/pips/keystone b/files/pips/keystone
index fef9f8b..09636e4 100644
--- a/files/pips/keystone
+++ b/files/pips/keystone
@@ -1,2 +1 @@
 PassLib
-pycli