Revert "Added new maven profile ``sbt-new``, which is needed because of"

This reverts commit 3ab5dab4f72df4dd92f4c0f77b3b1a12fc987e20.
Merge pull request #82 from scala-ide/update-doc-after-ide-pr-548

Revert "Added new maven profile ``sbt-new``, which is needed because of"