Remove "Waiting for children..." debug log as it's quite noisy.

Author: ioquatix

lib/async/container/group.rb

@@ -180,7 +180,8 @@ def wait_for(channel)
 			protected
 
 			def wait_for_children(duration = nil)
-				Console.debug(self, "Waiting for children...", duration: duration, running: @running)
+				# This log is a big noisy and doesn't really provide a lot of useful information.
+				# Console.debug(self, "Waiting for children...", duration: duration, running: @running)
 
 				if !@running.empty?
 					# Maybe consider using a proper event loop here: