feat(typescript): Remove tslint

[AbhiPrasad]

tslint has been deprecated for eslint: https://github.com/palantir/tslint#tslint

The SDK switched over to eslint in Aug 2020

• feat: Add Eslint to sentry-javascript #2786
• build: Convert core, hub, minimal and types to use eslint #2794
• build: Convert utils, apm, angular, gatsby, ember to eslint #2804
• build: Switch integrations, node, react, tracing to eslint #2806
• build(eslint): Create eslint-config-sentry-sdks #2807

Let's formally remove tslint support in our typescript package. This cleans up our dependencies and reduces confusion to new SDK devs.

Resolves https://getsentry.atlassian.net/browse/WEB-824

[github-actions]

size-limit report 📦

Path	Size
@sentry/browser - ES5 CDN Bundle (gzipped + minified)	20.18 KB (+0.18% 🔺)
@sentry/browser - ES5 CDN Bundle (minified)	64.31 KB (-0.47% 🔽)
@sentry/browser - ES6 CDN Bundle (gzipped + minified)	18.84 KB (-0.09% 🔽)
@sentry/browser - ES6 CDN Bundle (minified)	57.95 KB (-0.04% 🔽)
@sentry/browser - Webpack (gzipped + minified)	23.42 KB (+0.77% 🔺)
@sentry/browser - Webpack (minified)	81.22 KB (-0.6% 🔽)
@sentry/react - Webpack (gzipped + minified)	23.46 KB (+0.79% 🔺)
@sentry/nextjs Client - Webpack (gzipped + minified)	47.96 KB (-0.19% 🔽)
@sentry/browser + @sentry/tracing - ES5 CDN Bundle (gzipped + minified)	26.04 KB (-0.12% 🔽)
@sentry/browser + @sentry/tracing - ES6 CDN Bundle (gzipped + minified)	24.41 KB (-0.29% 🔽)