chore: update flatpak release info

RELEASING.md

@@ -25,13 +25,4 @@ Once this bug is fixed we can go back to using the `zip` format by itself.
 
 ## Linux Flatpak
 
-Flatpak generation is different from the normal build process and thus must be done once we have the final build binaries.
+Flatpak generation is different from the normal build process and is not directly managed by the Session Technology Foundation. When a new version of Session Desktop is released, a Flathub operated bot will make a Pull Request on the [Session Flathub Repo](https://github.com/flathub/network.loki.Session) to repackage the release into a Flatpak and release it on Flathub. 
-
-1. Clone https://github.com/flathub/network.loki.Session
-2. Update `network.loki.Session.metainfo.xml` with the release information
-   - `<release version="[version]" date="[date]"/>`
-3. Update `network.loki.Session.json`
-   - Under `sources`, change the `url` so it points to the latest `deb` and update the `sha256` signature.
-4. Create a pull request with the changes
-
-Once that is done, a developer will go in a review them before merging them in which will trigger a build and release into the Flathub repo.