docs: update PULL_REQUEST_TEMPLATE.md

.github/PULL_REQUEST_TEMPLATE.md

@@ -45,10 +45,7 @@ Issue Number: N/A
 - [ ] Any _change_ in functionality is tested
 - [ ] New functions are documented (with a description, list of inputs, and expected output)
 - [ ] Placeholder code is flagged / future todos are captured in comments
-- [ ] Visually tested in supported browsers and devices (see checklist below :point_down:)
-- [ ] Project documentation has been updated (including the "Unreleased" section of the CHANGELOG)
-- [ ] Reviewers requested with
-  the [Reviewers tool](https://help.github.com/articles/requesting-a-pull-request-review/) :arrow_right:
+- [ ] Project documentation has been updated
 
 ## Other information