RFR: 8256017: Remove unused elapsedTimer constructor

[Claes Redestad]

8256017: Remove unused elapsedTimer constructor

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Commit messages:
 - Merge branch 'master' into elapsedTimer_cleanup
 - Remove unused elapsedTimer constructor

Changes: https://git.openjdk.java.net/jdk/pull/1112/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1112&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8256017
  Stats: 17 lines in 2 files changed: 0 ins; 17 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1112.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1112/head:pull/1112

PR: https://git.openjdk.java.net/jdk/pull/1112