Revert "Add missing hexpire and httl in distributed"

This reverts commit b6bc399.

Looks like @byroot added the changes before I got it out.

Author: vietqhoang

lib/redis/distributed.rb

@@ -858,16 +858,6 @@ def hmset(key, *attrs)
       node_for(key).hmset(key, *attrs)
     end
 
-    # Set the expiration for hash fields in seconds
-    def hexpire(key, ttl, *fields)
-      node_for(key).hexpire(key, ttl, *fields)
-    end
-
-    # Returns the ttl of the hash fields
-    def httl(key, *fields)
-      node_for(key).httl(key, *fields)
-    end
-
     def mapped_hmset(key, hash)
       node_for(key).hmset(key, hash)
     end