remove flaky test (fork-parallel)

as suggested by Eugene

sbt/src/sbt-test/tests/fork-parallel/project/ForkParallelTest.scala

@@ -1,27 +0,0 @@
-import sbt._
-import Keys._
-import Tests._
-import Defaults._
-
-object ForkParallelTest extends Build {
-	val check = taskKey[Unit]("Check that tests are executed in parallel")
-
-	lazy val root = Project("root", file("."), settings = defaultSettings ++ Seq(
-		scalaVersion := "2.9.2",
-		libraryDependencies += "com.novocode" % "junit-interface" % "0.10" % "test",
-		fork in Test := true,
-		check := {
-			val nbProc = java.lang.Runtime.getRuntime().availableProcessors()
-			if( nbProc < 4 ) {
-				streams.value.log.warn("With fewer than 4 processors this test is meaningless")
-			} else {
-				// we've got at least 4 processors, we'll check the upper end but also 3 and 4 as the upper might not
-				// be reached if the system is under heavy load.
-				if( ! (file("max-concurrent-tests_3").exists() || file("max-concurrent-tests_4").exists() ||
-							 file("max-concurrent-tests_" + (nbProc -1)).exists() || file("max-concurrent-tests_" + nbProc).exists())) {
-					sys.error("Forked tests were not executed in parallel!")
-				}
-			}
-		}
-	))
-}

sbt/src/sbt-test/tests/fork-parallel/src/test/scala/tests.scala

@@ -1,53 +0,0 @@
-
-import java.io.File
-import java.util.concurrent.atomic.AtomicInteger
-import org.junit.Test
-import scala.annotation.tailrec
-
-object ParallelTest {
-	val nbConcurrentTests = new AtomicInteger(0)
-	val maxConcurrentTests = new AtomicInteger(0)
-
-	private def updateMaxConcurrentTests(currentMax: Int, newMax: Int) : Boolean = {
-		if( maxConcurrentTests.compareAndSet(currentMax, newMax) ) {
-			val f = new File("max-concurrent-tests_" + newMax)
-			f.createNewFile
-			true
-		} else {
-			false
-		}
-	}
-
-	@tailrec
-	def execute(f : => Unit): Unit = {
-		val nb = nbConcurrentTests.incrementAndGet()
-		val max = maxConcurrentTests.get()
-		if( nb <= max || updateMaxConcurrentTests(max, nb)) {
-			f
-			nbConcurrentTests.getAndDecrement
-		} else {
-			nbConcurrentTests.getAndDecrement
-			execute(f)
-		}
-	}
-}
-
-class Test1 {
-	@Test
-	def slow(): Unit = ParallelTest.execute { Thread.sleep(1000) }
-}
-
-class Test2 {
-	@Test
-	def slow(): Unit = ParallelTest.execute { Thread.sleep(1000) }
-}
-
-class Test3 {
-	@Test
-	def slow(): Unit = ParallelTest.execute { Thread.sleep(1000) }
-}
-
-class Test4 {
-	@Test
-	def slow(): Unit = ParallelTest.execute { Thread.sleep(1000) }
-}

sbt/src/sbt-test/tests/fork-parallel/test

@@ -1,7 +0,0 @@
-> test
--> check
-
-> clean
-> set testForkedParallel := true
-> test
-> check