Remove Redis 2.8 (EOL; http://redis.io/topics/releases#support)

library/redis

@@ -4,14 +4,6 @@ Maintainers: Tianon Gravi <[email protected]> (@tianon),
              Joseph Ferguson <[email protected]> (@yosifkit)
 GitRepo: https://github.com/docker-library/redis.git
 
-Tags: 2.8.23, 2.8, 2
-GitCommit: 6cb8a8015f126e2a7251c5d011b86b657e9febd6
-Directory: 2.8
-
-Tags: 2.8.23-32bit, 2.8-32bit, 2-32bit
-GitCommit: 6cb8a8015f126e2a7251c5d011b86b657e9febd6
-Directory: 2.8/32bit
-
 Tags: 3.0.7, 3.0
 GitCommit: 6cb8a8015f126e2a7251c5d011b86b657e9febd6
 Directory: 3.0