Simplify pull request template (#1191)

Removed unnecessary sections and checklist items from the pull request template.

Author: ChrisTitusTech

.github/PULL_REQUEST_TEMPLATE.md

@@ -13,15 +13,9 @@ https://github.com/ChrisTitusTech/linutil/blob/main/.github/CONTRIBUTING.md
 - [ ] UI/UX improvement
 
 ## Description
-<!--[Provide a detailed explanation of the changes you have made. Include the reasons behind these changes and any relevant context. Link any related issues.]-->
 
 ## Issues / other PRs related
 <!--[What issue/discussion is related to this PR (if any)]-->
 - Resolves #
 
 ## Screenshots (if applicable)
-
-
-## Checklist
-- [ ] I have made corresponding changes to the documentation (`cargo xtask docgen`).
-- [ ] My changes generate no errors/warnings/merge conflicts and passes unit tests.