https://bugs.webkit.org/show_bug.cgi?id=112261

Reviewed by Anders Carlsson.

There's no need to call client's methods in TextCheckerEfl.cpp if they are not
implemented. Mark them as not implemented until we provide proper implementation.

* UIProcess/efl/TextCheckerEfl.cpp:
(WebKit::TextChecker::isContinuousSpellCheckingAllowed):
(WebKit::TextChecker::setGrammarCheckingEnabled):
(WebKit::TextChecker::grammarCheckingEnabledStateChanged):
(WebKit::TextChecker::checkGrammarOfString):
(WebKit::TextChecker::spellingUIIsShowing):
(WebKit::TextChecker::toggleSpellingUIIsShowing):
(WebKit::TextChecker::updateSpellingUIWithMisspelledWord):
(WebKit::TextChecker::updateSpellingUIWithGrammarString):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@147993 268f45cc-cd09-0410-ab3c-d52691b4dbfc