RFR: 8257537: [vector] Cleanup redundant bitwise cases on floating point vectors

[Paul Sandoz]

Float/DoubleVector implementations contain redundant cases for bitwise operations. Such bitwise operations will fail on such FP vectors before the case is reached.

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Commit messages:
 - 8257537: [vector] Cleanup redundant bitwise cases on floating point vectors

Changes: https://git.openjdk.java.net/jdk/pull/1544/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1544&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8257537
  Stats: 28 lines in 3 files changed: 4 ins; 24 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1544.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1544/head:pull/1544

PR: https://git.openjdk.java.net/jdk/pull/1544