update PR template

Author: joshuahannan

.github/PULL_REQUEST_TEMPLATE.md

@@ -14,12 +14,4 @@ For contributor use:
 - [ ] Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
 - [ ] Code follows the [standards mentioned here](https://github.com/onflow/flow-ft/blob/master/CONTRIBUTING.md#styleguides).
 - [ ] Updated relevant documentation 
-- [ ] Re-reviewed `Files changed` in the Github PR explorer
-- [ ] Added appropriate labels 
-<!-- Please follow the below standard to update the version in package.json
-    - Major if there is a new smart contract introduced.
-    - Major if there is a breaking change that is introduced in the existing contract.
-    - Minor if there is a new feature addition within the existing smart contracts.
-    - Patch if there is a non breaking change in the existing smart contracts.
--->
-- [ ] Update the version in package.json when there is a change in the smart contracts
+- [ ] Re-reviewed `Files changed` in the Github PR explorer