Drop support for scala.js 0.6.x

Author: Philippus

.circleci/config.yml

@@ -65,7 +65,7 @@ jobs:
         type: string
       scalajs_version:
         description: "ScalaJS version"
-        default: 0.6.33
+        default: 1.0.1
         type: string
     environment:
       SCALAJS_VERSION: << parameters.scalajs_version >>
@@ -128,14 +128,6 @@ workflows:
           name: jdk14_dotty
           java_version: jdk14
           scala_version: 0.27.0-RC1
-      - scalajs_job:
-          name: sjs0.6_2.12
-          scala_version: 2.12.10
-          scalajs_version: 0.6.33
-      - scalajs_job:
-          name: sjs0.6_2.13
-          scala_version: 2.13.1
-          scalajs_version: 0.6.33
       - scalajs_job:
           name: sjs1.0_2.12
           scala_version: 2.12.10

.travis.yml

@@ -11,15 +11,12 @@ scala:
 
 env:
   - SCALAJS_VERSION=         ADOPTOPENJDK=8
-  - SCALAJS_VERSION=0.6.33   ADOPTOPENJDK=8
   - SCALAJS_VERSION=1.0.1    ADOPTOPENJDK=8
   - SCALAJS_VERSION=         ADOPTOPENJDK=11
   - SCALAJS_VERSION=         ADOPTOPENJDK=13
 
 matrix:
   exclude:
-    - scala: 0.27.0-RC1
-      env: SCALAJS_VERSION=0.6.33   ADOPTOPENJDK=8
     - scala: 0.27.0-RC1
       env: SCALAJS_VERSION=1.0.1    ADOPTOPENJDK=8
 

project/plugins.sbt

@@ -1,5 +1,5 @@
 val scalaJSVersion =
-  Option(System.getenv("SCALAJS_VERSION")).filter(_.nonEmpty).getOrElse("0.6.33")
+  Option(System.getenv("SCALAJS_VERSION")).filter(_.nonEmpty).getOrElse("1.0.1")
 
 addSbtPlugin("org.scala-lang.modules" % "sbt-scala-module" % "2.2.0")
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.0.0")