remove alpha info

docs/react-v9/contributing/release-cycle.md

@@ -5,7 +5,6 @@
   - [FAQ](#faq)
     - [Is there still a need for `_unstable` suffixes for hooks/utilities?](#is-there-still-a-need-for-_unstable-suffixes-for-hooksutilities)
     - [What's the process for updating already existing unstable package](#whats-the-process-for-updating-already-existing-unstable-package)
-      - [package not released to npm yet (`9.0.0-alpha.x`):](#package-not-released-to-npm-yet-900-alphax)
       - [package already released to npm as `9.0.0-(alpha|beta|rc).x`:](#package-already-released-to-npm-as-900-alphabetarcx)
 - [Dev Guide](#dev-guide)
   - [1. Kick-off phase](#1-kick-off-phase)
@@ -40,92 +39,6 @@ Any utilities that are in a stable package **cannot be broken**. Therefore, the
 
 Any hooks/utilities with the `_unstable` suffix **cannot be removed and cannot be broken until the next major version**.
 
-### What's the process for updating already existing unstable package
-
-#### package not released to npm yet (`9.0.0-alpha.x`):
-
-> All packages migration PR https://github.com/microsoft/fluentui/pull/28474
-
-<details>
-Let's say you have already created `packages/react-components/react-control` package which is in unstable phase.
-
-Follow these steps:
-
-1. rename package directory and api.md
-
-```sh
-mv packages/react-components/react-control packages/react-components/react-control-preview
-mv packages/react-components/react-control/etc/react-control.api.md packages/react-components/react-control/etc/react-control-preview.api.md
-```
-
-2. Update `README.md`
-
-```diff
--# @fluentui/react-control-preview
-+# @fluentui/react-control
-```
-
-3. Update `package.json`
-
-```diff
-{
-- "name": "@fluentui/react-control",
-+ "name": "@fluentui/react-control-preview",
-- "version": "9.0.0-alpha.0",
-+ "version": "0.0.0",
-  "beachball": {
-    "disallowedChangeTypes": [
-      "major",
--     "minor",
--     "patch",
-+     "prerelease"
-    ]
-},
-}
-```
-
-4. Update `project.json`
-
-```diff
-{
-- "name": "@fluentui/react-control",
-+ "name": "@fluentui/react-control-preview",
-}
-```
-
-5. Update `jest.config.js`
-
-```diff
-module.exports = {
--  displayName: 'react-control',
-+  displayName: 'react-control-preview',
-}
-```
-
-6. Update `tsconfig.base.json` and `tsconfig.base.all.json`
-
-```diff
-"paths": {
-- "@fluentui/react-control": ["packages/react-components/react-control/src/index.ts"]
-+ "@fluentui/react-control-preview": ["packages/react-components/react-control-preview/src/index.ts"]
-}
-```
-
-7. Update `/github/CODEOWNERS`
-
-```diff
--packages/react-components/react-control @microsoft/<team-name>
-+packages/react-components/react-control-preview @microsoft/<team-name>
-```
-
-8. now when ready to release follow [Unstable phase (first release)](#unstable-phase-first-release)
-
-</details>
-
-#### package already released to npm as `9.0.0-(alpha|beta|rc).x`:
-
-> automation PR in progress https://github.com/microsoft/fluentui/pull/28481
-
 # Dev Guide
 
 Following chapters describe required steps for each phase. All of them are generated so it's only a matter of invoking proper generator.