[EFL] inspector/styles/styles-history.html is flaky
https://bugs.webkit.org/show_bug.cgi?id=98777

Unreviewed gardening.

Unskip inspector/styles/styles-history.html as it was fixed by r131895.

Patch by Seokju Kwon <seokju.kwon@gmail.com> on 2013-04-15

* platform/efl/TestExpectations:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@148419 268f45cc-cd09-0410-ab3c-d52691b4dbfc