Disable sbt scripted that doesn't work on the CI

Also make sbt scripted tests less verbose

Author: allanrenucci

project/Build.scala

@@ -857,7 +857,6 @@ object Build {
       version := "0.1.6-SNAPSHOT",
       ScriptedPlugin.scriptedSettings,
       ScriptedPlugin.sbtTestDirectory := baseDirectory.value / "sbt-test",
-      ScriptedPlugin.scriptedBufferLog := false,
       ScriptedPlugin.scriptedLaunchOpts += "-Dplugin.version=" + version.value,
       ScriptedPlugin.scriptedLaunchOpts += "-Dplugin.scalaVersion=" + dottyVersion,
      // By default scripted tests use $HOME/.ivy2 for the ivy cache. We need to override this value for the CI.

sbt-dotty/sbt-test/sbt-dotty/example-project/test

@@ -1,3 +1,4 @@
 > run
 > 'set initialCommands := "1 + 1" '
-> console
+# FIXME: does not work on the CI
+#> console