RFR: 8278423: ExtendedDTraceProbes should be deprecated [v2]

[Emanuel Peter]

> Deprecated ExtendedDTraceProbes.
> Edited help messages and man pages accordingly.
> Removed `/src/hotspot/share/services/dtraceAttacher.hpp`: only contained declarations that are never defined or used.
> 
> Checked that tests are not affected.

Emanuel Peter has updated the pull request incrementally with two additional commits since the last revision:

 - Mode of speech edit
 - Fix formatting issue

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/7110/files
  - new: https://git.openjdk.java.net/jdk/pull/7110/files/885b985b..ecbee3a6

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7110&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7110&range=00-01

  Stats: 3 lines in 2 files changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7110.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7110/head:pull/7110

PR: https://git.openjdk.java.net/jdk/pull/7110