Remove unused ARMv6-specific #if branches in WebCore::canHyphenate
https://bugs.webkit.org/show_bug.cgi?id=136420

Reviewed by Dan Bernstein.

* platform/text/cf/HyphenationCF.cpp:
(WebCore::AtomicStringKeyedMRUCache<RetainPtr<CFLocaleRef>>::createValueForNullKey):
Use kCFAllocatorDefault instead of 0.

(WebCore::canHyphenate):
Remove ARMv6-specific code.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@173151 268f45cc-cd09-0410-ab3c-d52691b4dbfc