Remove Karma scripts and docs

package.json

@@ -46,7 +46,6 @@
     "grunt-contrib-copy": "~1.0.0",
     "grunt-contrib-cssmin": "~1.0.2",
     "grunt-exec": "^1.0.1",
-    "grunt-karma": "~2.0.0",
     "grunt-notify": "^0.4.5",
     "grunt-postcss": "^0.8.0",
     "grunt-sass": "^2.0.0",
@@ -58,14 +57,6 @@
     "html-webpack-plugin": "^3.2.0",
     "husky": "^0.14.3",
     "jest": "^22.0.4",
-    "karma": "1.7.0",
-    "karma-chrome-launcher": "~2.2.0",
-    "karma-expect": "~1.1.3",
-    "karma-mocha": "~1.3.0",
-    "karma-phantomjs-launcher": "1.0.4",
-    "karma-sinon": "^1.0.5",
-    "karma-sourcemap-loader": "^0.3.7",
-    "karma-webpack": "^3.0.0",
     "lint-staged": "^6.0.0",
     "load-grunt-tasks": "3.5.2",
     "mini-css-extract-plugin": "^0.4.0",
@@ -112,7 +103,6 @@
     "test": "grunt test",
     "test:coverage": "grunt test --coverage=true",
     "lint": "tslint -c tslint.json --project tsconfig.json --type-check",
-    "karma": "grunt karma:dev",
     "jest": "jest --notify --watch",
     "api-tests": "jest --notify --watch --config=tests/api/jest.js",
     "precommit": "lint-staged && grunt precommit"