RFR: 8272614: Unused parameters in MethodHandleNatives linking methods

[Harold Seigel]

Please review this small fix for JDK-8272614 to remove the unused indexInCP argument to linkCallSite() and linkDynamicConstant().  The fix was tested with Mach5 tiers 1-2 on Linux, Mac OS, and Windows, and Mach5 tiers 3-6 on Linux x64.

Thanks, Harold

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Commit messages:
 - 8272614: Unused parameters in MethodHandleNatives linking methods

Changes: https://git.openjdk.java.net/jdk/pull/6021/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=6021&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8272614
  Stats: 8 lines in 3 files changed: 0 ins; 3 del; 5 mod
  Patch: https://git.openjdk.java.net/jdk/pull/6021.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/6021/head:pull/6021

PR: https://git.openjdk.java.net/jdk/pull/6021