chore: unhide multi-organization cli commands (#14693)

* chore: unhide multi-organization cli commands

Multi-org is going into GA, unhide cli commands

docs/reference/cli/organizations_members_remove.md

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+<!-- DO NOT EDIT | GENERATED CONTENT -->
+
+# organizations members remove
+
+Remove a new member to the current organization
+
+Aliases:
+
+- rm
+
+## Usage
+
+```console
+coder organizations members remove <username | user_id>
+```