chore(test): remove IE11 from targets

Author: buschtoens

tests/dummy/config/targets.js

@@ -6,12 +6,8 @@ const browsers = [
   'last 1 Safari versions'
 ];
 
-const isCI = !!process.env.CI;
-const isProduction = process.env.EMBER_ENV === 'production';
-
-if (isCI || isProduction) {
-  browsers.push('ie 11');
-}
+// const isCI = !!process.env.CI;
+// const isProduction = process.env.EMBER_ENV === 'production';
 
 module.exports = {
   browsers