[widgets] Error in i18n tests for features

# i18nlro30 (download, files)
Tests that LRO direction does not apply to the feature element's required attribute. To pass, the value of the required attribute must be treated as "false".


The actual feature is:

    <feature name="feature:x-bugus-feature" required="false" dir="rtl"/>

So as the feature is unsupported by the UA, the feature is ignored and the value of the required attribute is irrelevant. (All other xxx30 tests have the same issue).