Trivial cleanup to simplify `configuration.utils` to just `utils`, removing the redundant `configuration.`
------------- Commit messages: - JDK-8253879: Simplify redundant code in IndexBuilder Changes: https://git.openjdk.java.net/jdk/pull/445/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=445&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8253879 Stats: 7 lines in 1 file changed: 0 ins; 0 del; 7 mod Patch: https://git.openjdk.java.net/jdk/pull/445.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/445/head:pull/445 PR: https://git.openjdk.java.net/jdk/pull/445
