Stop testing the 0.6.x branch of Scala.js.

It has been discontinued.

We keep the infrastructure for testing various branches, as it
might still be useful in the future.

Author: sjrd

.travis.yml

@@ -14,9 +14,6 @@ env:
   - SCALA_BRANCH=2.11.x SCALAJS_BRANCH=master
   - SCALA_BRANCH=2.12.x SCALAJS_BRANCH=master
   - SCALA_BRANCH=2.13.x SCALAJS_BRANCH=master
-  - SCALA_BRANCH=2.11.x SCALAJS_BRANCH=0.6.x
-  - SCALA_BRANCH=2.12.x SCALAJS_BRANCH=0.6.x
-  - SCALA_BRANCH=2.13.x SCALAJS_BRANCH=0.6.x
 
 cache:
   directories:

run.sh

@@ -10,9 +10,6 @@ echo "Project suffix: $SUFFIX"
 echo "Scala.js branch: $SCALAJS_BRANCH"
 
 case $SCALAJS_BRANCH in
-  0.6.x)
-    TESTS="testSuite/test testSuiteJVM/test ir/test irJS/test"
-    ;;
   master)
     TESTS="testSuite$SUFFIX/test testSuiteJVM$SUFFIX/test ir$SUFFIX/test irJS$SUFFIX/test linker$SUFFIX/test linkerJS$SUFFIX/test"
     ;;