Removes the `defaultIndex`since it is no longer used. -------------
Commit messages: - 8225235: Unused field defaultIndex in NetworkInterface Changes: https://git.openjdk.org/jdk/pull/10471/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10471&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8225235 Stats: 10 lines in 2 files changed: 0 ins; 9 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/10471.diff Fetch: git fetch https://git.openjdk.org/jdk pull/10471/head:pull/10471 PR: https://git.openjdk.org/jdk/pull/10471
