RFR: 8246378: [Windows] assert on MethodHandle logging code

[Coleen Phillimore]

The MethodHandles verbose logging code tries to walk windows stacks without using the StackWalk API and fails miserably.  It was the only consumer of os::current_frame() and get_sender_for_C_frame().  For Windows, the hs_err stack walking was fixed to use the StackWalk API and NMT was used to use RtlCaptureStackBackTrace.
This change removes the stub generated for getting the fp (which isn't valid anyway on windows).  I also removed it from windows_aarch64 since it wasn't actually generated.

Tested with tier1-3 for windows-x64.
Thanks,
Coleen

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

Commit messages:
 - 8246378: [Windows] assert on MethodHandle logging code

Changes: https://git.openjdk.java.net/jdk/pull/1321/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1321&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8246378
  Stats: 136 lines in 11 files changed: 23 ins; 92 del; 21 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1321.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1321/head:pull/1321

PR: https://git.openjdk.java.net/jdk/pull/1321