Revert "Use scala jdk converters."

This reverts commit 209e814.

build.mill

@@ -26,7 +26,6 @@ object Deps {
   val sourcecode = ivy"com.lihaoyi::sourcecode::0.4.2"
   val utest = ivy"com.lihaoyi::utest::0.8.4"
   val expecty = ivy"com.eed3si9n.expecty::expecty::0.16.0"
-  val collectionCompact = ivy"org.scala-lang.modules::scala-collection-compat:2.9.0"
   def scalaReflect(scalaVersion: String) = ivy"org.scala-lang:scala-reflect:$scalaVersion"
   def scalaLibrary(version: String) = ivy"org.scala-lang:scala-library:${version}"
 }
@@ -116,7 +115,7 @@ trait OsLibModule
 }
 
 trait OsModule extends OsLibModule { outer =>
-  def ivyDeps = Agg(Deps.geny, Deps.collectionCompact)
+  def ivyDeps = Agg(Deps.geny)
   override def compileIvyDeps = T {
     val scalaReflectOpt = Option.when(!ZincWorkerUtil.isDottyOrScala3(scalaVersion()))(
       Deps.scalaReflect(scalaVersion())

os/src/Path.scala

@@ -2,7 +2,7 @@ package os
 
 import java.net.URI
 import java.nio.file.Paths
-import scala.jdk.CollectionConverters._
+import collection.JavaConverters._
 import scala.language.implicitConversions
 import acyclic.skipped
 import os.PathError.{InvalidSegment, NonCanonicalLiteral}
@@ -212,7 +212,7 @@ object BasePath {
     }
   }
   def chunkify(s: java.nio.file.Path) = {
-    import scala.jdk.CollectionConverters._
+    import collection.JavaConverters._
     s.iterator().asScala.map(_.toString).filter(_ != ".").filter(_ != "").toArray
   }
 }

os/src/ProcessOps.scala

@@ -1,6 +1,6 @@
 package os
 
-import scala.jdk.CollectionConverters._
+import collection.JavaConverters._
 import java.lang.ProcessBuilder.Redirect
 import os.SubProcess.InputStream
 import java.io.IOException

os/src/ReadWriteOps.scala

@@ -56,7 +56,7 @@ object write {
   ) = {
     checker.value.onWrite(target)
 
-    import scala.jdk.CollectionConverters._
+    import collection.JavaConverters._
     val permArray: Array[FileAttribute[_]] =
       if (perms == null) Array.empty
       else Array(PosixFilePermissions.asFileAttribute(perms.toSet()))

os/src/ZipOps.scala

@@ -4,8 +4,7 @@ import java.net.URI
 import java.nio.file.{FileSystem, FileSystems, Files}
 import java.nio.file.attribute.{BasicFileAttributeView, FileTime, PosixFilePermissions}
 import java.util.zip.{ZipEntry, ZipFile, ZipInputStream, ZipOutputStream}
-import scala.jdk.CollectionConverters._
-
+import scala.collection.JavaConverters._
 import scala.util.matching.Regex
 
 object zip {

os/test/src-jvm/ZipOpJvmTests.scala

@@ -5,7 +5,7 @@ import utest._
 import java.nio.file.attribute.FileTime
 import java.nio.file.{Files, Paths}
 import java.util.zip.ZipFile
-import scala.jdk.CollectionConverters._
+import scala.collection.JavaConverters._
 
 object ZipOpJvmTests extends TestSuite {
 

os/watch/src/WatchServiceWatcher.scala

@@ -8,7 +8,7 @@ import java.nio.file.StandardWatchEventKinds.{ENTRY_CREATE, ENTRY_DELETE, ENTRY_
 import com.sun.nio.file.{ExtendedWatchEventModifier, SensitivityWatchEventModifier}
 
 import scala.collection.mutable
-import scala.jdk.CollectionConverters._
+import collection.JavaConverters._
 import scala.util.Properties.isWin
 
 class WatchServiceWatcher(