Remove Karma scripts and docs

scripts/grunt/default_task.js

@@ -12,7 +12,6 @@ module.exports = function(grunt) {
     'sasslint',
     'exec:tslint',
     "exec:jest",
-    'karma:test',
     'no-only-tests'
   ]);
 

scripts/grunt/options/karma.js

@@ -1,23 +0,0 @@
-module.exports = function (config) {
-  'use strict';
-
-  return {
-    dev: {
-      configFile: 'karma.conf.js',
-      singleRun: false,
-    },
-
-    debug: {
-      configFile: 'karma.conf.js',
-      singleRun: false,
-      browsers: ['Chrome'],
-      mime: {
-        'text/x-typescript': ['ts', 'tsx']
-      },
-    },
-
-    test: {
-      configFile: 'karma.conf.js',
-    }
-  };
-};