Expunge the use of the `SecurityManager`, `AccessController`, and the like from the `java.io` package.
------------- Commit messages: - 8344077: Remove security manager dependency in java.io Changes: https://git.openjdk.org/jdk/pull/22219/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22219&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8344077 Stats: 261 lines in 9 files changed: 2 ins; 225 del; 34 mod Patch: https://git.openjdk.org/jdk/pull/22219.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/22219/head:pull/22219 PR: https://git.openjdk.org/jdk/pull/22219
