RFR: 8280496: Remove unused G1PageBasedVirtualSpace::pretouch_internal [v2]

[Kim Barrett]

> Please review this trivial change to remove an unused function.
> 
> Testing:
> mach5 tier1

Kim Barrett has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:

 - Merge branch 'master' into remove-pretouch-internal
 - remove unused pretouch_internal

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/7186/files
  - new: https://git.openjdk.java.net/jdk/pull/7186/files/eeca4c3e..566f024c

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7186&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7186&range=00-01

  Stats: 483 lines in 42 files changed: 350 ins; 52 del; 81 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7186.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7186/head:pull/7186

PR: https://git.openjdk.java.net/jdk/pull/7186