remove WARNING text from bufferedBus docs

event/buffered_bus.go

@@ -38,7 +38,7 @@ type bufferedBus struct {
 	// It is important that all stuff gets sent through this single channel to ensure
 	// that the order of operations is preserved.
 	//
-	// WARNING: This does mean that non-event commands can block the database if the buffer
+	// This does mean that non-event commands can block the database if the buffer
 	// size is breached (e.g. if many subscribe commands occupy the buffer).
 	commandChannel  chan any
 	eventBufferSize int