Explicitly skip webarchive tests on GTK+, because we do not
        support them. Remove all GTK+-specific webarchive expected results.

        * platform/gtk/Skipped: Explicitly skip all webarchive tests.
        * platform/gtk/http/tests/webarchive/cross-origin-stylesheet-crash-expected.txt: Removed.
        * platform/gtk/http/tests/webarchive/test-css-url-encoding-expected.txt: Removed.
        * platform/gtk/http/tests/webarchive/test-css-url-encoding-shift-jis-expected.txt: Removed.
        * platform/gtk/http/tests/webarchive/test-css-url-encoding-utf-8-expected.txt: Removed.
        * platform/gtk/http/tests/webarchive/test-preload-resources-expected.txt: Removed.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@78370 268f45cc-cd09-0410-ab3c-d52691b4dbfc