Remove deprecated fields and messages

[vepatel]

This epic will be used to track all the tasks/issues which introduce a flag or functionality requiring some sort of depreciation in upcoming releases

Tasks

• [ ] https://github.com/nginxinc/kubernetes-ingress/issues/5260
• [ ] Remove controller.readOnlyRootFilesystem in 3 major releases post 3.5.
• [x] Remove section regarding external references in our app-protect-waf integration docs
• [ ] Reomove section regarding waf.securityLog field for the waf policy and update example resource in configuration/policy-resource/#waf
• [x] https://docs.nginx.com/nginx-ingress-controller/configuration/global-configuration/command-line-arguments/#-inlcude-year
• [x] https://github.com/nginxinc/kubernetes-ingress/issues/5776
• [ ] https://github.com/nginxinc/kubernetes-ingress/issues/5777
• [ ] Deprication of NGINX OpenTracing module as or R32 - Will last up to R34 - Will be FULLY REMOVED in R35) R32 Release notes
• [ ] fake.NewSimpleClientset() is depicated and replaced with fake.NewClisntset()

[github-actions[bot]]

Hi @vepatel thanks for reporting!

Be sure to check out the docs and the Contributing Guidelines while you wait for a human to take a look at this :slightly_smiling_face:

Cheers!