fix test case 778 to removed the aria-checked state as it is not consistent with the testable statement
--- a/ARIA/1.0/tests/test-files/roles-properties-supported/roles-properties-supported-option-aria-checked-true.html Tue May 28 05:48:55 2013 -0500
+++ b/ARIA/1.0/tests/test-files/roles-properties-supported/roles-properties-supported-option-aria-checked-true.html Tue May 28 06:04:45 2013 -0500
@@ -6,8 +6,8 @@
<title><div> with role option; supported state or property "aria-checked" value of "true"</title>
</head>
<body>
- <div role="listbox"><div id="test" role="option" aria-checked="true">Placeholder content</div></div>
+ <div role="listbox"><div id="test" role="option">Placeholder content</div></div>
<div id="obj1">obj1</div>
<div id="obj2">obj2</div>
</body>
-</html>
\ No newline at end of file
+</html>