Revert "Avoid pulling broken Maven artifact"

This reverts commit e287403. Now unnecessary.

Author: Blaisorblade

project/Build.scala

@@ -874,8 +874,7 @@ object Build {
       fork in run := true,
       fork in Test := true,
       libraryDependencies ++= Seq(
-        "org.eclipse.xtend" % "org.eclipse.xtend.lib" % "2.16.0",
-        "org.eclipse.lsp4j" % "org.eclipse.lsp4j" % "0.5.0" exclude ("org.eclipse.xtend", "org.eclipse.xtend.lib"),
+        "org.eclipse.lsp4j" % "org.eclipse.lsp4j" % "0.5.0",
         Dependencies.`jackson-databind`
       ),
       javaOptions := (javaOptions in `dotty-compiler-bootstrapped`).value,