Update README.md

Author: bytefish

README.md

@@ -5,7 +5,6 @@
 [PgBulkInsert]: https://github.com/bytefish/PgBulkInsert
 [Npgsql]: https://github.com/npgsql/npgsql
 
-![](https://github.com/PgBulkInsert/PgBulkInsert/workflows/Java%20CI%20with%20Maven/badge.svg)
 ![](https://maven-badges.herokuapp.com/maven-central/de.bytefish/pgbulkinsert/badge.svg)
 
 PgBulkInsert is a Java library for Bulk Inserts to PostgreSQL using the Binary COPY Protocol.