Do not splay in SplayTree::find_hint
Do not splay in SplayTree::find_hint

 The current std::map implementation uses a splay
 tree under the covers. While this can have better
 performance, it has a drawback of not being thread-safe
 for find ops, a common use case.  This commit comments
 out the splay call in find_hint, which eliminates the
 splay during find ops. This chg significantly reduces
 the exposure to the issue while a more permanent fix is created.

Change-Id: I513837c349029e4438576adcf36a5011e13d4d0d
JIRA: PFHB-297
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/140607
Reviewed-by: Matthew Raybuck <9bcecd56bb1097e934e4548e2b924569df303f40@ibm.com>
Tested-by: Jenkins OP Build CI <e610bd72261d3c0a48f1e8ae36832ab00774d426@us.ibm.com>
Tested-by: Jenkins Server <8e3f934e4c44875bc48d33da3ea13d93ba9a233f@us.ibm.com>
Tested-by: Jenkins Combined Simics CI <8312af3886dfc9bb930f549023677220805b137e@us.ibm.com>
Tested-by: Jenkins OP HW <0eb0fff262f74a65a832afbcc7b153e391c9a3fd@us.ibm.com>
Tested-by: FSP CI Jenkins <aa9e4d9ac7cd25905e9c0dd36d4150516e73dd86@us.ibm.com>
Tested-by: Hostboot CI <52521565bd8ea18a2b112942dce4f4220a97c2c8@us.ibm.com>
Reviewed-by: Ilya Smirnov <2c7a6ec38cfb553b896499595cca9c656159f2a4@us.ibm.com>
Reviewed-by: Nick Bofferding <fb8db48116bc8a69e29dd8cdb037246f232f4af5@us.ibm.com>

open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot,open-power/hostboot