Unsuppress Android Lint

[swankjesse]

In PR #1535 I upgraded Okio to build with Kotlin 2.x.

To get this building I needed to suppress Android lint like so:

tasks.withType<AndroidLintAnalysisTask> {
  onlyIf { false }
}

According to Google’s bug tracking bug, this crash likely indicates that Okio has a duplicated symbol somewhere. We should figure out what that symbol is, deduplicate it, and unsuppress the lint task.