remove IE11 support

Author: NullVoxPopuli

frameworks/keyed/ember-sparkles/config/targets.js

@@ -6,13 +6,6 @@ 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');
-}
-
 module.exports = {
   browsers
 };

frameworks/keyed/ember/config/targets.js

@@ -6,13 +6,6 @@ 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');
-}
-
 module.exports = {
   browsers
 };