Remove guardian/eslint-config (#14635)

We use `guardian/eslint-config-typescript`, which depends on and extends
this, so we don't need it as a separate dependency.

Author: JamieB-gu

dotcom-rendering/package.json

@@ -34,7 +34,6 @@
 		"@guardian/cdk": "61.4.0",
 		"@guardian/commercial-core": "28.0.0",
 		"@guardian/core-web-vitals": "7.0.0",
-		"@guardian/eslint-config": "7.0.1",
 		"@guardian/eslint-config-typescript": "9.0.1",
 		"@guardian/identity-auth": "6.0.1",
 		"@guardian/identity-auth-frontend": "8.1.0",