Prune dead code for Web Inspector memory instrumentation.

Prune dead code for Web Inspector memory instrumentation.
<https://webkit.org/b/129286>

Source/WebCore:

This was leftover code from Chromium's inspector. It's not used by
today's WebKit inspector.

Reviewed by Sam Weinig.

* CMakeLists.txt:
* DerivedSources.make:
* GNUmakefile.am:
* GNUmakefile.list.am:
* WebCore.vcxproj/WebCore.vcxproj:
* WebCore.vcxproj/WebCore.vcxproj.filters:
* WebCore.xcodeproj/project.pbxproj:
* inspector/InspectorAllInOne.cpp:
* inspector/InspectorController.cpp:
(WebCore::InspectorController::InspectorController):
* inspector/InspectorController.h:
* inspector/InspectorMemoryAgent.cpp: Removed.
* inspector/InspectorMemoryAgent.h: Removed.
* inspector/InspectorTimelineAgent.cpp:
(WebCore::InspectorTimelineAgent::InspectorTimelineAgent):
* inspector/InspectorTimelineAgent.h:
* inspector/WorkerInspectorController.cpp:
(WebCore::WorkerInspectorController::WorkerInspectorController):
* inspector/protocol/Memory.json: Removed.

Source/WebInspectorUI:

Reviewed by Sam Weinig.

* UserInterface/Protocol/InspectorWebBackendCommands.js:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@164637 268f45cc-cd09-0410-ab3c-d52691b4dbfc