remove redis (#12918)

vendor/modules.txt

@@ -22,14 +22,6 @@ github.com/disintegration/imaging
 github.com/dyatlov/go-opengraph/opengraph
 # github.com/fsnotify/fsnotify v1.4.7
 github.com/fsnotify/fsnotify
-# github.com/go-redis/redis v6.15.5+incompatible
-github.com/go-redis/redis
-github.com/go-redis/redis/internal
-github.com/go-redis/redis/internal/consistenthash
-github.com/go-redis/redis/internal/hashtag
-github.com/go-redis/redis/internal/pool
-github.com/go-redis/redis/internal/proto
-github.com/go-redis/redis/internal/util
 # github.com/go-sql-driver/mysql v1.4.1
 github.com/go-sql-driver/mysql
 # github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0