chore: Remove redundant imports in several examples

[teo-garcia]

This issue is related to 12694. I covered the following examples

• auth0
• with-apollo
• with-apollo-and-redux
• with-context-api
• with-docker
• with-emotion
• with-redux-observable
• with-redux-persist
• with-redux-saga
• with-redux-thunk
• with-redux-toolkit
• with-styled-components

If you have a suggestion or change I'd appreciate it

[ijjk]

Stats from current PR

Default Server Mode (Decrease detected ✓)

General

	zeit/next.js canary	jmgr2996/next.js feat/remove-severals-react-imports	Change
buildDuration	12.9s	13.4s	⚠️ +523ms
nodeModulesSize	58.5 MB	58.5 MB	✓

Page Load Tests Overall decrease ⚠️

	zeit/next.js canary	jmgr2996/next.js feat/remove-severals-react-imports	Change
/ failed reqs	0	0	✓
/ total time (seconds)	2.197	2.354	⚠️ +0.16
/ avg req/sec	1137.81	1061.88	-75.93
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.459	1.47	⚠️ +0.01
/error-in-render avg req/sec	1713.36	1700.79	-12.57

Client Bundles (main, webpack, commons)

	zeit/next.js canary	jmgr2996/next.js feat/remove-severals-react-imports	Change
main-HASH.js gzip	6.67 kB	6.67 kB	✓
webpack-HASH.js gzip	746 B	746 B	✓
de003c3a9d30..e49d.js gzip	10.4 kB	10.4 kB	✓
framework.HASH.js gzip	39.1 kB	39.1 kB	✓
Overall change	57 kB	57 kB	✓

Client Bundles (main, webpack, commons) Modern

	zeit/next.js canary	jmgr2996/next.js feat/remove-severals-react-imports	Change
main-HASH.module.js gzip	5.71 kB	5.71 kB	✓
webpack-HASH..dule.js gzip	746 B	746 B	✓
de003c3a9d30..dule.js gzip	6.85 kB	6.85 kB	✓
framework.HA..dule.js gzip	39.1 kB	39.1 kB	✓
Overall change	52.4 kB	52.4 kB	✓

Legacy Client Bundles (polyfills)

	zeit/next.js canary	jmgr2996/next.js feat/remove-severals-react-imports	Change
polyfills-HASH.js gzip	26.3 kB	26.3 kB	✓
Overall change	26.3 kB	26.3 kB	✓

Client Pages

	zeit/next.js canary	jmgr2996/next.js feat/remove-severals-react-imports	Change
_app.js gzip	1.26 kB	1.26 kB	✓
_error.js gzip	3.28 kB	3.28 kB	✓
hooks.js gzip	881 B	881 B	✓
index.js gzip	222 B	222 B	✓
link.js gzip	2.06 kB	2.06 kB	✓
routerDirect.js gzip	279 B	279 B	✓
withRouter.js gzip	278 B	278 B	✓
Overall change	8.26 kB	8.26 kB	✓

Client Pages Modern

	zeit/next.js canary	jmgr2996/next.js feat/remove-severals-react-imports	Change
_app.module.js gzip	604 B	604 B	✓
_error.module.js gzip	2.09 kB	2.09 kB	✓
hooks.module.js gzip	383 B	383 B	✓
index.module.js gzip	223 B	223 B	✓
link.module.js gzip	1.52 kB	1.52 kB	✓
routerDirect..dule.js gzip	281 B	281 B	✓
withRouter.m..dule.js gzip	278 B	278 B	✓
Overall change	5.38 kB	5.38 kB	✓

Client Build Manifests

	zeit/next.js canary	jmgr2996/next.js feat/remove-severals-react-imports	Change
_buildManifest.js gzip	61 B	61 B	✓
_buildManife..dule.js gzip	61 B	61 B	✓
Overall change	122 B	122 B	✓

Rendered Page Sizes

	zeit/next.js canary	jmgr2996/next.js feat/remove-severals-react-imports	Change
index.html gzip	926 B	926 B	✓
link.html gzip	936 B	936 B	✓
withRouter.html gzip	923 B	923 B	✓
Overall change	2.79 kB	2.79 kB	✓

---

Serverless Mode

General

	zeit/next.js canary	jmgr2996/next.js feat/remove-severals-react-imports	Change
buildDuration	13.6s	13.7s	⚠️ +82ms
nodeModulesSize	58.5 MB	58.5 MB	✓

Client Bundles (main, webpack, commons)

	zeit/next.js canary	jmgr2996/next.js feat/remove-severals-react-imports	Change
main-HASH.js gzip	6.67 kB	6.67 kB	✓
webpack-HASH.js gzip	746 B	746 B	✓
de003c3a9d30..e49d.js gzip	10.4 kB	10.4 kB	✓
framework.HASH.js gzip	39.1 kB	39.1 kB	✓
Overall change	57 kB	57 kB	✓

Client Bundles (main, webpack, commons) Modern

	zeit/next.js canary	jmgr2996/next.js feat/remove-severals-react-imports	Change
main-HASH.module.js gzip	5.71 kB	5.71 kB	✓
webpack-HASH..dule.js gzip	746 B	746 B	✓
de003c3a9d30..dule.js gzip	6.85 kB	6.85 kB	✓
framework.HA..dule.js gzip	39.1 kB	39.1 kB	✓
Overall change	52.4 kB	52.4 kB	✓

Legacy Client Bundles (polyfills)

	zeit/next.js canary	jmgr2996/next.js feat/remove-severals-react-imports	Change
polyfills-HASH.js gzip	26.3 kB	26.3 kB	✓
Overall change	26.3 kB	26.3 kB	✓

Client Pages

	zeit/next.js canary	jmgr2996/next.js feat/remove-severals-react-imports	Change
_app.js gzip	1.26 kB	1.26 kB	✓
_error.js gzip	3.28 kB	3.28 kB	✓
hooks.js gzip	881 B	881 B	✓
index.js gzip	222 B	222 B	✓
link.js gzip	2.06 kB	2.06 kB	✓
routerDirect.js gzip	279 B	279 B	✓
withRouter.js gzip	278 B	278 B	✓
Overall change	8.26 kB	8.26 kB	✓

Client Pages Modern

	zeit/next.js canary	jmgr2996/next.js feat/remove-severals-react-imports	Change
_app.module.js gzip	604 B	604 B	✓
_error.module.js gzip	2.09 kB	2.09 kB	✓
hooks.module.js gzip	383 B	383 B	✓
index.module.js gzip	223 B	223 B	✓
link.module.js gzip	1.52 kB	1.52 kB	✓
routerDirect..dule.js gzip	281 B	281 B	✓
withRouter.m..dule.js gzip	278 B	278 B	✓
Overall change	5.38 kB	5.38 kB	✓

Client Build Manifests

	zeit/next.js canary	jmgr2996/next.js feat/remove-severals-react-imports	Change
_buildManifest.js gzip	61 B	61 B	✓
_buildManife..dule.js gzip	61 B	61 B	✓
Overall change	122 B	122 B	✓

Serverless bundles

	zeit/next.js canary	jmgr2996/next.js feat/remove-severals-react-imports	Change
_error.js	850 kB	850 kB	✓
404.html	4.18 kB	4.18 kB	✓
hooks.html	3.81 kB	3.81 kB	✓
index.js	851 kB	851 kB	✓
link.js	888 kB	888 kB	✓
routerDirect.js	880 kB	880 kB	✓
withRouter.js	880 kB	880 kB	✓
Overall change	4.36 MB	4.36 MB	✓