Build: Drop browserstack-runner setup

It's not likely to work in all browsers supported by jQuery Color 2.x and we
test on TestSwarm anyway.

.travis.yml

@@ -12,15 +12,7 @@ notifications:
     template:
     - ! '%{repository}#%{build_number} (%{branch} - %{commit} %{author}): %{message}
       - %{build_url}'
-before_install:
-  - true && `base64 --decode <<< ZXhwb3J0IEJST1dTRVJTVEFDS19VU0VSTkFNRT1qcXVlcnljb2xvcjE=`
-  - true && `base64 --decode <<< ZXhwb3J0IEJST1dTRVJTVEFDS19LRVk9RllGR3Z1WWdyWHF6OHlrN1JXUWU=`
 env:
   - NPM_SCRIPT=ci
-matrix:
-  fast_finish: true
-  include:
-    - node_js: "14"
-      env: NPM_SCRIPT=browserstack
 script:
   - npm run-script $NPM_SCRIPT

package.json

@@ -9,7 +9,6 @@
     "url": "https://github.com/jquery/jquery-color/blob/master/AUTHORS.txt"
   },
   "scripts": {
-    "browserstack": "sh build/run-browserstack.sh",
     "ci": "grunt ci",
     "test": "grunt ci"
   },
@@ -42,7 +41,6 @@
     "jquery": ">=1.11.0"
   },
   "devDependencies": {
-    "browserstack-runner": "0.9.1",
     "commitplease": "3.2.0",
     "eslint-config-jquery": "3.0.0",
     "grunt": "1.1.0",