Remove deprecated github-org processor config

Signed-off-by: Tim Hansen <timbonicus@gmail.com>

docs/integrations/github/org.md

@@ -22,8 +22,8 @@ entities that mirror your org setup.
 The processor that performs the import, `GithubOrgReaderProcessor`, comes
 installed with the default setup of Backstage.
 
-If you replace the set of processors in your installation using that facility of
-the catalog builder class, you can import and add it as follows.
+If you have _replaced_ the set of processors in your installation using
+`replaceProcessors`, you can import and add it as follows:
 
 ```ts
 // Typically in packages/backend/src/plugins/catalog.ts
@@ -45,30 +45,13 @@ catalog:
   locations:
     - type: github-org
       target: https://github.com/my-org-name
-  processors:
-    githubOrg:
-      providers:
-        - target: https://github.com
-          apiBaseUrl: https://api.github.com
-          token: ${GITHUB_TOKEN}
 ```
 
 Locations point out the specific org(s) you want to import. The `type` of these
 locations must be `github-org`, and the `target` must point to the exact URL of
-some organization. You can have several such location entries if you want, but
-typically you will have just one.
+some organization. You can have several such location entries if needed.
 
-The processor itself is configured in the other block, under
-`catalog.processors.githubOrg`. There may be many providers, each targeting a
-specific `target` which is supposed to be the address of the home page of GitHub
-or your GitHub Enterprise installation.
-
-The example above assumes that the backend is started with an environment
-variable called `GITHUB_TOKEN` that contains a Personal Access Token. The token
-needs to have at least the scopes `read:org`, `read:user`, and `user:email` in
-the given `target`.
-
-If you want to address your own GitHub Enterprise instance, replace occurrences
-of `https://github.com` in the configuration above with the address of your
-GitHub Enterprise home page, and the `apiBaseUrl` to where your API endpoint
-lives - commonly on the form `https://<host>/api/v3`.
+The authorization for loading org information comes from a configured
+[GitHub integration](locations.md#configuration). When using a personal access
+token, the token needs to have at least the scopes `read:org`, `read:user`, and
+`user:email` in the given `target`.