Web Inspector: nuke bottom up CPU profile calculation on backend
https://bugs.webkit.org/show_bug.cgi?id=112351

Reviewed by Pavel Feldman.

Removed code that builds bottom-up CPU profile on the inspector
backend. Bottom-up view is already built on the front-end from
the top-down profile data.

* bindings/js/ScriptProfile.cpp:
* bindings/js/ScriptProfile.h:
(ScriptProfile):
* bindings/v8/ScriptProfile.cpp:
(WebCore::ScriptProfile::buildInspectorObjectForHead):
* bindings/v8/ScriptProfile.h:
(ScriptProfile):
* inspector/Inspector.json:
* inspector/InspectorProfilerAgent.cpp:
(WebCore::InspectorProfilerAgent::getCPUProfile):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@145819 268f45cc-cd09-0410-ab3c-d52691b4dbfc