Remove outdated docs redirects

doc/administration/auth/okta.md

----
-redirect_to: '../../integration/saml.md'
-remove_date: '2021-06-15'
----
-
-This document was moved to [another location](../../integration/saml.md).
-
-<!-- This redirect file can be deleted after 2021-06-15>. -->
-<!-- Before deletion, see: https://docs.gitlab.com/ee/development/documentation/#move-or-rename-a-page -->

doc/administration/geo/replication/remove_geo_node.md

----
-redirect_to: '../../geo/replication/remove_geo_site.md'
-remove_date: '2021-06-01'
----
-
-This document was moved to [another location](../../geo/replication/remove_geo_site.md).
-
-<!-- This redirect file can be deleted after 2021-06-01 -->
-<!-- Before deletion, see: https://docs.gitlab.com/ee/development/documentation/#move-or-rename-a-page -->

doc/ci/chatops/README.md

----
-redirect_to: 'index.md'
-remove_date: '2021-05-01'
----
-
-This document was moved to [another location](index.md).
-
-<!-- This redirect file can be deleted after 2021-05-01. -->
-<!-- Before deletion, see: https://docs.gitlab.com/ee/development/documentation/#move-or-rename-a-page -->

doc/ci/docker/README.md

----
-redirect_to: 'index.md'
-remove_date: '2021-05-01'
----
-
-This document was moved to [another location](index.md).
-
-<!-- This redirect file can be deleted after 2021-05-01. -->
-<!-- Before deletion, see: https://docs.gitlab.com/ee/development/documentation/#move-or-rename-a-page -->

doc/ci/examples/test-and-deploy-python-application-to-heroku.md

----
-redirect_to: 'README.md#contributed-examples'
-remove_date: '2021-06-01'
----
-
-This document was moved to [another location](README.md#contributed-examples).
-
-<!-- This redirect file can be deleted after 2021-06-01. -->
-<!-- Before deletion, see: https://docs.gitlab.com/ee/development/documentation/#move-or-rename-a-page -->

doc/ci/examples/test-and-deploy-ruby-application-to-heroku.md

----
-redirect_to: 'README.md#contributed-examples'
-remove_date: '2021-06-01'
----
-
-This document was moved to [another location](README.md#contributed-examples).
-
-<!-- This redirect file can be deleted after 2021-06-01. -->
-<!-- Before deletion, see: https://docs.gitlab.com/ee/development/documentation/#move-or-rename-a-page -->

doc/ci/examples/test-clojure-application.md

----
-redirect_to: 'README.md#contributed-examples'
-remove_date: '2021-05-26'
----
-
-This document was moved to [another location](README.md#contributed-examples).
-
-<!-- This redirect file can be deleted after 2021-05-26. -->
-<!-- Before deletion, see: https://docs.gitlab.com/ee/development/documentation/#move-or-rename-a-page -->

doc/ci/quick_start/README.md

----
-redirect_to: 'index.md'
-remove_date: '2021-05-01'
----
-
-This document was moved to [another location](index.md).
-
-<!-- This redirect file can be deleted after 2021-05-01. -->
-<!-- Before deletion, see: https://docs.gitlab.com/ee/development/documentation/#move-or-rename-a-page -->

doc/ci/services/README.md

----
-redirect_to: 'index.md'
-remove_date: '2021-05-01'
----
-
-This document was moved to [another location](index.md).
-
-<!-- This redirect file can be deleted after 2021-05-01. -->
-<!-- Before deletion, see: https://docs.gitlab.com/ee/development/documentation/#move-or-rename-a-page -->

doc/ci/ssh_keys/README.md

----
-redirect_to: 'index.md'
-remove_date: '2021-05-01'
----
-
-This document was moved to [another location](index.md).
-
-<!-- This redirect file can be deleted after 2021-05-01. -->
-<!-- Before deletion, see: https://docs.gitlab.com/ee/development/documentation/#move-or-rename-a-page -->

doc/development/feature_flags/development.md

----
-redirect_to: 'index.md'
-remove_date: '2021-06-01'
----
-
-This document was moved to [another location](index.md).
-
-<!-- This redirect file can be deleted after 2021-06-01. -->
-<!-- Before deletion, see: https://docs.gitlab.com/ee/development/documentation/#move-or-rename-a-page -->
\ No newline at end of file

doc/development/feature_flags/process.md

----
-redirect_to: 'https://about.gitlab.com/handbook/product-development-flow/feature-flag-lifecycle/'
-remove_date: '2021-06-01'
----
-
-This document was moved to [another location](https://about.gitlab.com/handbook/product-development-flow/feature-flag-lifecycle/).
-
-<!-- This redirect file can be deleted after 2021-06-01. -->
-<!-- Before deletion, see: https://docs.gitlab.com/ee/development/documentation/#move-or-rename-a-page -->
\ No newline at end of file

doc/development/new_fe_guide/dependencies.md

----
-redirect_to: '../fe_guide/dependencies.md'
-remove_date: '2021-05-14'
----
-
-This document was moved to [another location](../fe_guide/dependencies.md).
-
-<!-- This redirect file can be deleted after <2021-05-14>. -->
-<!-- Before deletion, see: https://docs.gitlab.com/ee/development/documentation/#move-or-rename-a-page -->

doc/development/usage_ping.md

----
-redirect_to: 'usage_ping/index.md'
-remove_date: '2021-05-23'
----
-
-This document was moved to [another location](usage_ping/index.md).
-
-<!-- This redirect file can be deleted after <2021-05-23>. -->
-<!-- Before deletion, see: https://docs.gitlab.com/ee/development/documentation/#move-or-rename-a-page -->
\ No newline at end of file

doc/downgrade_ee_to_ce/README.md

----
-redirect_to: 'index.md'
-remove_date: '2021-05-11'
----
-
-This document was moved to [another location](index.md).
-
-<!-- This redirect file can be deleted after 2021-05-11. -->
-<!-- Before deletion, see: https://docs.gitlab.com/ee/development/documentation/#move-or-rename-a-page -->

doc/gitlab-basics/README.md

----
-redirect_to: 'index.md'
-remove_date: '2021-05-11'
----
-
-This document was moved to [another location](index.md).
-
-<!-- This redirect file can be deleted after 2021-05-11. -->
-<!-- Before deletion, see: https://docs.gitlab.com/ee/development/documentation/#move-or-rename-a-page -->

doc/gitlab-basics/create-project.md

----
-redirect_to: '../user/project/working_with_projects.md'
-remove_date: '2021-05-05'
----
-
-This document was moved to [another location](../user/project/working_with_projects.md).
-
-<!-- This redirect file can be deleted after <2021-05-05>. -->
-<!-- Before deletion, see: https://docs.gitlab.com/ee/development/documentation/#move-or-rename-a-page -->
\ No newline at end of file

doc/gitlab-basics/fork-project.md

----
-redirect_to: '../user/project/working_with_projects.md'
-remove_date: '2021-05-04'
----
-
-This document was moved to [another location](../user/project/working_with_projects.md).
-
-<!-- This redirect file can be deleted after <2021-05-04>. -->
-<!-- Before deletion, see: https://docs.gitlab.com/ee/development/documentation/#move-or-rename-a-page -->
\ No newline at end of file

doc/install/README.md

----
-redirect_to: 'index.md'
-remove_date: '2021-05-11'
----
-
-This document was moved to [another location](index.md).
-
-<!-- This redirect file can be deleted after 2021-05-11. -->
-<!-- Before deletion, see: https://docs.gitlab.com/ee/development/documentation/#move-or-rename-a-page -->

doc/integration/google_workspace_saml.md

----
-redirect_to: 'saml.md'
-remove_date: '2021-06-15'
----
-
-This document was moved to [another location](saml.md).
-
-<!-- This redirect file can be deleted after 2021-06-15>. -->
-<!-- Before deletion, see: https://docs.gitlab.com/ee/development/documentation/#move-or-rename-a-page -->