fix(@schematics/angular): remove unused karma config option

This option isn't used anymore.

Author: filipesilva

packages/schematics/angular/application/files/root/karma.conf.js

@@ -20,9 +20,6 @@ module.exports = function (config) {
       reports: ['html', 'lcovonly'],
       fixWebpackSourcePaths: true
     },
-    angularCli: {
-      environment: 'dev'
-    },
     reporters: ['progress', 'kjhtml'],
     port: 9876,
     colors: true,

packages/schematics/angular/library/files/__projectRoot__/karma.conf.js

@@ -20,9 +20,6 @@ module.exports = function (config) {
       reports: ['html', 'lcovonly'],
       fixWebpackSourcePaths: true
     },
-    angularCli: {
-      environment: 'dev'
-    },
     reporters: ['progress', 'kjhtml'],
     port: 9876,
     colors: true,

tests/@angular_devkit/build_angular/hello-world-app/karma.conf.js

@@ -22,9 +22,6 @@ module.exports = function (config) {
       reports: [ 'html', 'lcovonly' ],
       fixWebpackSourcePaths: true
     },
-    angularCli: {
-      environment: 'dev'
-    },
     reporters: ['progress', 'kjhtml'],
     port: 9876,
     colors: true,

tests/@angular_devkit/build_ng_packagr/ng-packaged/projects/lib/karma.conf.js

@@ -20,9 +20,6 @@ module.exports = function (config) {
       reports: ['html', 'lcovonly'],
       fixWebpackSourcePaths: true
     },
-    angularCli: {
-      environment: 'dev'
-    },
     reporters: ['progress', 'kjhtml'],
     port: 9876,
     colors: true,

tests/@angular_devkit/build_webpack/hello-world-app/karma.conf.js

@@ -22,9 +22,6 @@ module.exports = function (config) {
       reports: [ 'html', 'lcovonly' ],
       fixWebpackSourcePaths: true
     },
-    angularCli: {
-      environment: 'dev'
-    },
     reporters: ['progress', 'kjhtml'],
     port: 9876,
     colors: true,