[bug 1046671] Remove unused six.py from vendor-local.
[bug 1046671] Remove unused six.py from vendor-local.

Mte90/remo,mozilla/remo,johngian/remo,flamingspaz/remo,akatsoulas/remo,flamingspaz/remo,flamingspaz/remo,abdullah2891/remo,chirilo/remo,johngian/remo,akatsoulas/remo,akatsoulas/remo,abdullah2891/remo,mozilla/remo,tsmrachel/remo,abdullah2891/remo,Mte90/remo,johngian/remo,tsmrachel/remo,Mte90/remo,flamingspaz/remo,chirilo/remo,mozilla/remo,chirilo/remo,akatsoulas/remo,mozilla/remo,Mte90/remo,tsmrachel/remo,abdullah2891/remo,tsmrachel/remo,chirilo/remo,johngian/remo