Revert "ocg: Temp hack to fix empty redis password, take 2"

Bah, https://gerrit.wikimedia.org/r/#/c/176181/ probably did work,
I just didn't check properly.

This reverts commit 8da2bc7b3c370a1afae90805b25104ccf44554e5.

Change-Id: Ib787fcf87c6a11ef9d8870cd16c1434fb1e20ce0