README.md in embulk-output-aerospike-0.3.3 vs README.md in embulk-output-aerospike-0.3.4

@@ -2,11 +2,9 @@
 
 [![Gem Version](https://badge.fury.io/rb/embulk-output-aerospike.svg)](https://badge.fury.io/rb/embulk-output-aerospike)
 
 Aerospike output plugins for Embulk loads records to databases using [aerospiker](https://github.com/tkrs/aerospiker).
 
-And it was implemented in Scala :laughing:
-
 ## Overview
 
 * **Plugin type**: output
 * **Load all or nothing**: no
 * **Resume supported**: no