Change health check (#15988)

Gemfile.lock

@@ -21,14 +21,6 @@ GIT
       sidekiq (>= 3.5)
       statsd-ruby (~> 1.4, >= 1.4.0)
 
-GIT
-  remote: https://github.com/ianheggie/health_check
-  revision: 0b799ead604f900ed50685e9b2d469cd2befba5b
-  ref: 0b799ead604f900ed50685e9b2d469cd2befba5b
-  specs:
-    health_check (4.0.0.pre)
-      rails (>= 4.0)
-
 GIT
   remote: https://github.com/nsommer/pluck_each
   revision: 73be0947c52fc54bf6d7085378db008358aac5eb
@@ -755,7 +747,6 @@ DEPENDENCIES
   fog-openstack (~> 0.3)
   fuubar (~> 2.5)
   hamlit-rails (~> 0.2)
-  health_check!
   hiredis (~> 0.6)
   htmlentities (~> 4.3)
   http (~> 4.4)