remove dotty-core project and publish individually instead

Since you still need to depend on multiple artifacts from within the
dotty project, a unified project is not feasible. A plugin would work
better of course.

Author: felixmulder

project/Build.scala

@@ -338,6 +338,7 @@ object DottyInjectedPlugin extends AutoPlugin {
    lazy val publishing = Seq(
      publishMavenStyle := true,
      publishArtifact := true,
+     isSnapshot := version.value.contains("SNAPSHOT"),
      publishTo := {
        val nexus = "https://oss.sonatype.org/"
        if (isSnapshot.value)
@@ -391,13 +392,6 @@ object DottyInjectedPlugin extends AutoPlugin {
      )
    )
 
-   lazy val `dotty-core` = project
-     .dependsOn(`dotty-interfaces`)
-     .dependsOn(dotty)
-     .dependsOn(`dotty-bridge`)
-     .settings(publishing)
-     .aggregate(dotty, `dotty-interfaces`, `dotty-bridge`)
-
   // Partest tasks
   lazy val lockPartestFile = TaskKey[Unit]("lockPartestFile", "Creates the lock file at ./tests/locks/partest-<pid>.lock")
   lazy val partestLockFile = new File("." + File.separator + "tests" + File.separator + "locks" + File.separator + s"partest-$pid.lock")