Android Buildkite CI is consistently showing this error now ([example](https://buildkite.com/comm/android-build/builds/13015#0187aa89-0715-4987-bc4c-d83ae53f6939)):
```
Unrecognized VM option 'MaxPermSize=4096m'
```
This option was [removed](https://github.com/facebook/react-native/commit/09e418ef8e98fd026cf828696ff2475993b76ac2) in the React Native template's `gradle.properties` starting in 0.69, but I neglected to remove it during my most recent upgrade since I assumed our customization should be kept based on the contents of 24dd5bd2b9de7ffff06db6aa0d755ebfcc2730d4.
Given that the option is now causing CI to fail, and given that the template's config seems to include an updated heap size now, I figure we can realign our `gradle.properties` back to match what is in the React Native template.