chore: update pr template

Author: nattb8

.github/pull_request_template.md

@@ -41,6 +41,5 @@
 <!-- List of things to check before/after submitting the PR -->
 
 - [ ] Sample app is updated with new SDK changes
-- [ ] Updated public documentation with new SDK changes ([Immutable X](https://docs.immutable.com/docs/x/sdks/unity) and [Immutable zkEVM](https://docs.immutable.com/docs/zkEVM/sdks/unity))
-- [ ] Sample game is updated with new SDK changes
+- [ ] Updated public documentation with new SDK changes
 - [ ] Replied to GitHub issues