Remove the assets.gitlab-static.net domain from examples in our documentation

doc/api/projects.md

@@ -1072,7 +1072,7 @@ If the project is a fork, and you provide a valid token to authenticate, the
       "ssh_url_to_repo":"git@gitlab.com:gitlab-org/gitlab-foss.git",
       "http_url_to_repo":"https://gitlab.com/gitlab-org/gitlab-foss.git",
       "web_url":"https://gitlab.com/gitlab-org/gitlab-foss",
-      "avatar_url":"https://assets.gitlab-static.net/uploads/-/system/project/avatar/13083/logo-extra-whitespace.png",
+      "avatar_url":"https://gitlab.com/uploads/-/system/project/avatar/13083/logo-extra-whitespace.png",
       "license_url": "https://gitlab.com/gitlab-org/gitlab/-/blob/master/LICENSE",
       "license": {
         "key": "mit",

doc/ci/environments/protected_environments.md

@@ -79,7 +79,7 @@ Alternatively, you can use the API to protect an environment:
    $ curl --request POST --header "PRIVATE-TOKEN: <your_access_token>" \
           --data "user_id=3222377&access_level=20" "https://gitlab.com/api/v4/groups/9899826/members"
 
-   {"id":3222377,"name":"Sean Carroll","username":"sfcarroll","state":"active","avatar_url":"https://assets.gitlab-static.net/uploads/-/system/user/avatar/3222377/avatar.png","web_url":"https://gitlab.com/sfcarroll","access_level":20,"created_at":"2020-10-26T17:37:50.309Z","expires_at":null}
+   {"id":3222377,"name":"Sean Carroll","username":"sfcarroll","state":"active","avatar_url":"https://gitlab.com/uploads/-/system/user/avatar/3222377/avatar.png","web_url":"https://gitlab.com/sfcarroll","access_level":20,"created_at":"2020-10-26T17:37:50.309Z","expires_at":null}
    ```
 
 1. Use the API to add the group to the project as a reporter:

doc/development/image_scaling.md

@@ -37,8 +37,8 @@ Furthermore, configuration in Workhorse can lead to the image scaler rejecting a
 For instance, here are two different URLs that serve the GitLab project avatar both in its
 original size and scaled down to 64 pixels. Only the second request will trigger the image scaler:
 
-- [`/uploads/-/system/project/avatar/278964/logo-extra-whitespace.png`](https://assets.gitlab-static.net/uploads/-/system/project/avatar/278964/logo-extra-whitespace.png)
-- [`/uploads/-/system/project/avatar/278964/logo-extra-whitespace.png?width=64`](https://assets.gitlab-static.net/uploads/-/system/project/avatar/278964/logo-extra-whitespace.png?width=64)
+- [`/uploads/-/system/project/avatar/278964/logo-extra-whitespace.png`](https://gitlab.com/uploads/-/system/project/avatar/278964/logo-extra-whitespace.png)
+- [`/uploads/-/system/project/avatar/278964/logo-extra-whitespace.png?width=64`](https://gitlab.com/uploads/-/system/project/avatar/278964/logo-extra-whitespace.png?width=64)
 
 ## Where do we scale images?