[EFL] Remove the ewk_settings_shadow_dom_enable_set/get APIs from unit test
https://bugs.webkit.org/show_bug.cgi?id=115771

Patch by Jinwoo Song <jinwoo7.song@samsung.com> on 2013-05-07
Reviewed by Gyuyoung Kim.

Unit test is failing since r149702. Remove the test case related to shadow dom.

* tests/test_ewk_setting.cpp:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@149712 268f45cc-cd09-0410-ab3c-d52691b4dbfc