Remove all attribute selectors that are not Set or Exact.

sky/engine/core/css/CSSSelector.h

Index: sky/engine/core/css/CSSSelector.h
diff --git a/sky/engine/core/css/CSSSelector.h b/sky/engine/core/css/CSSSelector.h
index 44b8645b4a68521c8a27614d3bbf35839402a7fc..6d74be3413fdd24087c29a5246d7d7df4ad62265 100644
--- a/sky/engine/core/css/CSSSelector.h
+++ b/sky/engine/core/css/CSSSelector.h
@@ -110,11 +110,6 @@ namespace blink {
             PseudoElement, // Example: ::first-line
             Exact, // Example: E[foo="bar"]
             Set, // Example: E[foo]
-            Hyphen, // Example: E[foo|="bar"]
-            List, // Example: E[foo~="bar"]
-            Contain, // css3: E[foo*="bar"]
-            Begin, // css3: E[foo^="bar"]
-            End, // css3: E[foo$="bar"]
             FirstAttributeSelectorMatch = Exact,
         };