Delete TravisCI integration

Author: wimpyprogrammer

.travis.yml

@@ -3,7 +3,6 @@
 [![npm package](https://badge.fury.io/js/regex-to-strings.svg)](https://badge.fury.io/js/regex-to-strings)
 ![node version](https://img.shields.io/node/v/regex-to-strings.svg)
 ![npm type definitions](https://img.shields.io/npm/types/regex-to-strings)
-[![Build Status](https://travis-ci.org/wimpyprogrammer/regex-to-strings.svg?branch=main)](https://travis-ci.org/wimpyprogrammer/regex-to-strings)
 [![codecov](https://codecov.io/gh/wimpyprogrammer/regex-to-strings/branch/main/graph/badge.svg)](https://codecov.io/gh/wimpyprogrammer/regex-to-strings)
 [![Known Vulnerabilities](https://snyk.io/test/github/wimpyprogrammer/regex-to-strings/badge.svg)](https://snyk.io/test/github/wimpyprogrammer/regex-to-strings)
 

README.md

@@ -40,8 +40,7 @@
     "prepublish": "npx publish-please guard",
     "publish-please": "npx publish-please",
     "publish-please-prereqs": "npm run lint && npm run test && npm run build",
-    "test": "jest --coverage",
-    "travisci": "npm run lint && npm run test && codecov && npx snyk test"
+    "test": "jest --coverage"
   },
   "devDependencies": {
     "@babel/cli": "^7.5.5",