drop javascript to fix publishing of jar

addresses scala#51

other attempt doesn't fully work, see scala#63 (comment)

Author: mpollmeier

build.sbt

@@ -1,35 +1,17 @@
-import sbtcrossproject.CrossPlugin.autoImport.{CrossType, crossProject}
+name := "scala-collection-contrib"
+organization := "com.michaelpollmeier"
+scalaVersion := "2.13.1"
+enablePlugins(GitVersioning)
 
-// With CrossType.Pure, the root project also picks up the sources in `src`
-Compile/sources := Nil
-Test/sources := Nil
+scalacOptions ++= Seq("-opt-warnings", "-language:higherKinds", "-deprecation", "-feature", "-Xfatal-warnings")
+scalacOptions in (Compile, doc) ++= Seq("-implicits", "-groups")
+testOptions += Tests.Argument(TestFrameworks.JUnit, "-q", "-v", "-s", "-a")
+parallelExecution in Test := false  // why?
+libraryDependencies ++= Seq(
+  "junit"            % "junit"           % "4.12"   % Test,
+  "com.novocode"     % "junit-interface" % "0.11"   % Test,
+  "org.openjdk.jol"  % "jol-core"        % "0.9"    % Test
+)
 
-lazy val collectionContrib = crossProject(JVMPlatform, JSPlatform)
-  .withoutSuffixFor(JVMPlatform)
-  .crossType(CrossType.Pure)
-  .in(file("."))
-  .settings(ScalaModulePlugin.scalaModuleSettings)
-  .jvmSettings(ScalaModulePlugin.scalaModuleSettingsJVM)
-  .settings(
-    name := "scala-collection-contrib",
-    scalacOptions ++= Seq("-opt-warnings", "-language:higherKinds", "-deprecation", "-feature", "-Xfatal-warnings"),
-    scalacOptions in (Compile, doc) ++= Seq("-implicits", "-groups"),
-    testOptions += Tests.Argument(TestFrameworks.JUnit, "-q", "-v", "-s", "-a"),
-    parallelExecution in Test := false,  // why?
-    libraryDependencies ++= Seq(
-      "junit"            % "junit"           % "4.12"   % Test,
-      "com.novocode"     % "junit-interface" % "0.11"   % Test,
-      "org.openjdk.jol"  % "jol-core"        % "0.9"    % Test
-    )
-  )
-  .jvmSettings(
-    scalaModuleMimaPreviousVersion := Some("0.1.0"), // why only in jvmSettings?
-    // TODO: osgi settings; not trivial because of split packages.
-    // See https://github.com/scala/scala-collection-compat/pull/226
-    // OsgiKeys.exportPackage := Seq(s"scala.collection.*;version=${version.value}"),
-  )
-  .jsConfigure(_.enablePlugins(ScalaJSJUnitPlugin))
-  .jsSettings(
-    // Scala.js cannot run forked tests
-    fork in Test := false
-  )
+bintrayVcsUrl := Some("https://github.com/mpollmeier/scala-collection-contrib")
+licenses := List("Apache-2.0" -> url("http://www.apache.org/licenses/LICENSE-2.0"))

project/plugins.sbt

@@ -1,7 +1 @@
-val scalaJSVersion =
-  Option(System.getenv("SCALAJS_VERSION")).filter(_.nonEmpty).getOrElse("0.6.29")
-
-addSbtPlugin("org.scala-lang.modules" % "sbt-scala-module" % "2.1.2")
-
-addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "0.6.1")
-addSbtPlugin("org.scala-js" % "sbt-scalajs" % scalaJSVersion)
+addSbtPlugin("io.shiftleft" % "sbt-ci-release-early" % "1.1.14")