remove unused imports (#2719)

main-actions/src/test/scala/sbt/compiler/EvalTest.scala

@@ -10,7 +10,7 @@ import sbt.io.IO
 
 object EvalTest extends Properties("eval") {
   private[this] val reporter = new StoreReporter
-  import reporter.{ ERROR, Info, Severity }
+  import reporter.{ ERROR, Info }
   private[this] val eval = new Eval(_ => reporter, None)
 
   property("inferred integer") = forAll { (i: Int) =>

main-settings/src/main/scala/sbt/std/InputConvert.scala

@@ -1,7 +1,6 @@
 package sbt
 package std
 
-import language.experimental.macros
 import reflect.macros._
 
 import Def.Initialize

main-settings/src/test/scala/UsageTest.scala

@@ -2,7 +2,7 @@ package sbt
 package std
 
 import sbt.internal.util.complete
-import sbt.internal.util.complete.{ DefaultParsers, Parsers }
+import sbt.internal.util.complete.DefaultParsers
 
 /*object UseTask
 {

main/src/main/scala/sbt/Defaults.scala

@@ -51,13 +51,11 @@ import Keys._
 import xsbt.api.Discovery
 import xsbti.compile.{
   Compilers,
-  ClasspathOptions,
   CompileAnalysis,
   CompileOptions,
   CompileOrder,
   CompileResult,
   DefinesClass,
-  IncOptions,
   IncOptionsUtil,
   Inputs,
   MiniSetup,
@@ -69,10 +67,8 @@ import xsbti.compile.{
 import sbt.internal.inc.{
   AnalyzingCompiler,
   Analysis,
-  ClassfileManager,
   CompilerCache,
   FileValueCache,
-  IncrementalCompilerImpl,
   Locate,
   LoggerReporter,
   MixedAnalyzingCompiler,

main/src/main/scala/sbt/Keys.scala

@@ -7,9 +7,7 @@ import java.io.File
 import java.net.URL
 import scala.concurrent.duration.{ FiniteDuration, Duration }
 import Def.ScopedKey
-import sbt.internal.util.complete._
-import sbt.internal.inc.{ MixedAnalyzingCompiler, ScalaInstance }
-import std.TaskExtra._
+import sbt.internal.inc.ScalaInstance
 import xsbti.compile.{
   DefinesClass,
   ClasspathOptions,

main/src/test/scala/DefaultsTest.scala

@@ -1,7 +1,5 @@
 package sbt
 
-import java.io._
-
 import org.specs2.mutable.Specification
 
 object DefaultsTest extends Specification {

main/src/test/scala/Delegates.scala

@@ -1,11 +1,9 @@
 package sbt
 
 import Project._
-import sbt.internal.util.Types.{ idFun, some }
+import sbt.internal.util.Types.idFun
 import sbt.internal.TestBuild._
 
-import java.io.File
-import java.net.URI
 import org.scalacheck._
 import Prop._
 import Gen._

main/src/test/scala/ParseKey.scala

@@ -1,7 +1,6 @@
 package sbt
 
 import Def.{ displayFull, displayMasked, ScopedKey }
-import java.net.URI
 import sbt.internal.{ TestBuild, Resolve }
 import TestBuild._
 import sbt.internal.util.complete._

main/src/test/scala/PluginsTest.scala

@@ -1,6 +1,5 @@
 package sbt
 
-import java.io.File
 import org.specs2._
 import mutable.Specification
 import sbt.util.Logger

main/src/test/scala/sbt/internal/TestBuild.scala

@@ -3,15 +3,12 @@ package internal
 
 import Def.{ ScopedKey, Setting }
 import sbt.internal.util.{ AttributeKey, AttributeMap, Relation, Settings }
-import sbt.internal.util.Types.{ const, idFun, some }
+import sbt.internal.util.Types.{ const, some }
 import sbt.internal.util.complete.Parser
 
-import java.io.File
 import java.net.URI
 import org.scalacheck._
-import Prop._
 import Gen._
-import Arbitrary.arbBool
 
 // Notes:
 //  Generator doesn't produce cross-build project dependencies or do anything with the 'extra' axis
@@ -59,7 +56,7 @@ object TestBuild {
     lazy val allAttributeKeys: Set[AttributeKey[_]] = data.data.values.flatMap(_.keys).toSet
     lazy val (taskAxes, globalTaskAxis, onlyTaskAxis, multiTaskAxis) =
       {
-        import collection.{ breakOut, mutable }
+        import collection.mutable
         import mutable.HashSet
 
         // task axis of Scope is set to Global and the value of the second map is the original task axis

tasks-standard/src/test/scala/TaskRunnerCircular.scala

@@ -3,7 +3,6 @@ package sbt
 import org.scalacheck._
 import Prop._
 import TaskGen._
-import Task._
 
 object TaskRunnerCircularTest extends Properties("TaskRunner Circular") {
   property("Catches circular references") = forAll(MaxTasksGen, MaxWorkersGen) { checkCircularReferences _ }

tasks-standard/src/test/scala/TaskRunnerFork.scala

@@ -2,7 +2,6 @@ import sbt._
 
 import org.scalacheck._
 import Prop._
-import Task._
 import TaskGen._
 import math.abs
 

tasks-standard/src/test/scala/Test.scala

@@ -3,10 +3,7 @@
  */
 package sbt
 
-import sbt.internal.util.Types._
 import sbt.internal.util.AList
-import Task._
-import Execute._
 
 object Test extends std.TaskExtra {
   def t2[A, B](a: Task[A], b: Task[B]) = multInputTask[({ type l[L[x]] = (L[A], L[B]) })#l]((a, b))(AList.tuple2)

tasks-standard/src/test/scala/TestRunnerCall.scala

@@ -3,7 +3,6 @@ import sbt._
 import org.scalacheck._
 import Prop._
 import TaskGen._
-import Task._
 
 object TaskRunnerCallTest extends Properties("TaskRunner Call") {
   property("calculates fibonacci") = forAll(MaxTasksGen, MaxWorkersGen) { (i: Int, workers: Int) =>
@@ -40,4 +39,4 @@ object TaskRunnerCallTest extends Properties("TaskRunner Call") {
           build(index + 1, x2, x1 + x2)
       build(1, 0, 1)
     }
-}
+}

tasks-standard/src/test/scala/TestRunnerSort.scala

@@ -6,8 +6,6 @@ package sbt
 import org.scalacheck._
 import Prop._
 import TaskGen._
-import Task._
-import sbt.internal.util.Types._
 
 object TaskRunnerSortTest extends Properties("TaskRunnerSort") {
   property("sort") = forAll(TaskListGen, MaxWorkersGen) { (list: List[Int], workers: Int) =>