Remove still more BUILDING_ON_LEOPARD branches now that no port supports leopard

Remove still more BUILDING_ON_LEOPARD branches now that no port supports leopard
https://bugs.webkit.org/show_bug.cgi?id=90256

Reviewed by Ryosuke Niwa.

* platform/LocalizedStrings.cpp:
(WebCore::imageTitle):
* platform/graphics/cg/GraphicsContextCG.cpp:
(WebCore::GraphicsContext::setAllowsFontSmoothing):
* platform/graphics/cg/ImageCG.cpp:
(WebCore::Image::drawPattern):
* platform/graphics/cg/ImageSourceCG.cpp:
(WebCore::ImageSource::clear):
* platform/graphics/cg/PathCG.cpp:
(WebCore::Path::boundingRect):
* platform/graphics/cocoa/FontPlatformDataCocoa.mm:
(WebCore::FontPlatformData::ctFont):
* platform/graphics/gstreamer/MediaPlayerPrivateGStreamer.cpp:
* platform/graphics/mac/ComplexTextController.cpp:
* platform/graphics/mac/FontCacheMac.mm:
(WebCore::fontCacheRegisteredFontsChangedNotificationCallback):
(WebCore::FontCache::platformInit):
* platform/graphics/mac/FontCustomPlatformData.cpp:
(WebCore::FontCustomPlatformData::~FontCustomPlatformData):
(WebCore::createFontCustomPlatformData):
* platform/graphics/mac/FontCustomPlatformData.h:
(WebCore::FontCustomPlatformData::FontCustomPlatformData):
* platform/graphics/mac/SimpleFontDataMac.mm:
(WebCore::SimpleFontData::platformInit):
* platform/graphics/mac/WebLayer.h:
* platform/mac/CursorMac.mm:
(WebCore::Cursor::ensurePlatformCursor):
* platform/mac/DisplaySleepDisabler.cpp:
(WebCore::DisplaySleepDisabler::DisplaySleepDisabler):
(WebCore::DisplaySleepDisabler::~DisplaySleepDisabler):
* platform/mac/DisplaySleepDisabler.h:
(DisplaySleepDisabler):
* platform/mac/HTMLConverter.h:
* platform/mac/HTMLConverter.mm:
* platform/mac/PopupMenuMac.mm:
(WebCore::PopupMenuMac::populate):
* platform/mac/ScrollElasticityController.mm:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@121547 268f45cc-cd09-0410-ab3c-d52691b4dbfc