[vectorIntrinsics] RFR: Update perf tests.

[Paul Sandoz]

Update the perf tests by running the generation script.

The generation was out of sync (due to merges from master) and generated code that failed to compile.

As a consequence of moving the scatter/gather load/store unit tests to the load/store template the related vector performance tests are no longer generated, so they are removed. It's easier to remove the related scalar performance tests, then add back load/store performance tests using a specific template.

-------------

Commit messages:
 - Update perf tests.

Changes: https://git.openjdk.java.net/panama-vector/pull/159/files
 Webrev: https://webrevs.openjdk.java.net/?repo=panama-vector&pr=159&range=00
  Stats: 6770 lines in 39 files changed: 3932 ins; 2838 del; 0 mod
  Patch: https://git.openjdk.java.net/panama-vector/pull/159.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-vector pull/159/head:pull/159

PR: https://git.openjdk.java.net/panama-vector/pull/159