Remove integrity attribute from elements not in SRI spec

Source/core/html/HTMLAnchorElement.idl

Index: Source/core/html/HTMLAnchorElement.idl
diff --git a/Source/core/html/HTMLAnchorElement.idl b/Source/core/html/HTMLAnchorElement.idl
index ab3c118efc1f90612e58898df091e0284ea3a06c..a91eb2395c6067ef48fa84d30a4d1e4e44f8809e 100644
--- a/Source/core/html/HTMLAnchorElement.idl
+++ b/Source/core/html/HTMLAnchorElement.idl
@@ -39,11 +39,6 @@ interface HTMLAnchorElement : HTMLElement {
     [Reflect] attribute DOMString name;
     [Reflect] attribute DOMString rev;
     [Reflect] attribute DOMString shape;
-
-    // Subresource Integrity
-    // http://w3c.github.io/webappsec/specs/subresourceintegrity/
-    // FIXME: The spec does not extend HTMLAnchorElement.
-    [Reflect, RuntimeEnabled=SubresourceIntegrity] attribute DOMString integrity;
 };
 
 HTMLAnchorElement implements URLUtils;