Saner releases clean up (#12258)

* Remove allchange dependency

Signed-off-by: Michael Telatynski <[email protected]>

* Remove stale release scripts

Signed-off-by: Michael Telatynski <[email protected]>

* Update pull request template to remove allchange behaviours

Signed-off-by: Michael Telatynski <[email protected]>

---------

Signed-off-by: Michael Telatynski <[email protected]>

.github/PULL_REQUEST_TEMPLATE.md

@@ -5,22 +5,3 @@
 -   [ ] Tests written for new code (and old code if feasible)
 -   [ ] Linter and other CI checks pass
 -   [ ] Sign-off given on the changes (see [CONTRIBUTING.md](https://github.com/matrix-org/matrix-react-sdk/blob/develop/CONTRIBUTING.md))
-
-<!--
-If you would like to specify text for the changelog entry other than your PR title, add the following:
-
-Notes: Add super cool feature
-
-Changes in this project also generate changelogs in Element Web. To disable this, use the following:
-
-element-web notes: none
-
-or specify alternative text:
-
-element-web notes: Add super cool feature
-
-Changes to this project require tagging with the type of change. If you know the correct type, add the following:
-
-Type: [enhancement/defect/task]
-
--->

package.json

@@ -185,7 +185,6 @@
         "@types/uuid": "^9.0.2",
         "@typescript-eslint/eslint-plugin": "^6.0.0",
         "@typescript-eslint/parser": "^6.0.0",
-        "allchange": "^1.1.0",
         "axe-core": "4.8.3",
         "babel-jest": "^29.0.0",
         "blob-polyfill": "^7.0.0",