nats.rb in protobuf-nats-0.1.2

- old
+ new

@@ -2,11 +2,10 @@
 
 require "protobuf"
 # We don't need this, but the CLI attempts to terminate.
 require "protobuf/rpc/service_directory"
 
-require "connection_pool"
-
+require "concurrent"
 require "nats/io/client"
 
 require "protobuf/nats/client"
 require "protobuf/nats/server"
 require "protobuf/nats/runner"