RFR: 8302806: (fs) Remove com.sun.nio.file.SensitivityWatchEventModifier [v4]

[Brian Burkhalter]

> This enum is not used in the JDK and did not appear in external source code searches.

Brian Burkhalter has updated the pull request incrementally with one additional commit since the last revision:

  8302806: Remove ExtendedOptions.SENSITIViTY_xxx and things depending on it

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Changes:
  - all: https://git.openjdk.org/jdk/pull/12626/files
  - new: https://git.openjdk.org/jdk/pull/12626/files/e17f66c1..6172ac39

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=12626&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=12626&range=02-03

  Stats: 36 lines in 5 files changed: 2 ins; 22 del; 12 mod
  Patch: https://git.openjdk.org/jdk/pull/12626.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12626/head:pull/12626

PR: https://git.openjdk.org/jdk/pull/12626