Disable scalaVersion to avoid errors when deploying jars

warn]   ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  ::          UNRESOLVED DEPENDENCIES         ::
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  :: org.scalikejdbc#scalikejdbc_2.11;2.2.1: not found
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
sbt.ResolveException: unresolved dependency: org.scalikejdbc#scalikejdbc_2.11;2.2.1: not found
  at sbt.IvyActions$.sbt$IvyActions$$resolve(IvyActions.scala:217)
  at sbt.IvyActions$$anonfun$update$1.apply(IvyActions.scala:126)