git: openjdk/skara: 63: Remove the census cache

[duke]

Changeset: 3e24d9ce
Author:    Robin Westberg <rwestberg at openjdk.org>
Date:      2019-08-19 14:33:56 +0000
URL:       https://git.openjdk.java.net/skara/commit/3e24d9ce

63: Remove the census cache

Reviewed-by: ehelin

! bots/pr/src/main/java/org/openjdk/skara/bots/pr/CensusInstance.java
- bots/pr/src/test/java/org/openjdk/skara/bots/pr/CensusInstanceTests.java