remove final reference to rsocketBom

Author: kbahr

gradle.properties

@@ -27,7 +27,6 @@ postgresqlVersion=42.2.5
 protobufVersion=3.6.1
 reactorBomVersion=Californium-SR5
 roaringbitmapVersion=0.7.42
-rsocketBomVersion=1.6.1-SNAPSHOT
 rxjava2JdbcVersion=0.2.4
 spectatorVersion=0.61.0
 typesafeConfigVersion=1.3.3