Remove KeyboardEvent.altGraphKey

LayoutTests/fast/forms/tabs-with-modifiers-expected.txt

Index: LayoutTests/fast/forms/tabs-with-modifiers-expected.txt
diff --git a/LayoutTests/fast/forms/tabs-with-modifiers-expected.txt b/LayoutTests/fast/forms/tabs-with-modifiers-expected.txt
index 74325a510d7372248107974bf75daf1ae74cb5c1..c546231914eef653aca621d46c4afb34f4127ce9 100644
--- a/LayoutTests/fast/forms/tabs-with-modifiers-expected.txt
+++ b/LayoutTests/fast/forms/tabs-with-modifiers-expected.txt
@@ -34,28 +34,4 @@ test tab case that should not advance focus
 resetting focus to middle input
 test tab case that should not advance focus
 - keydown event: b
-resetting focus to middle input
-test tab case that should not advance focus
-- keydown event: b
-resetting focus to middle input
-test tab case that should not advance focus
-- keydown event: b
-resetting focus to middle input
-test tab case that should not advance focus
-- keydown event: b
-resetting focus to middle input
-test tab case that should not advance focus
-- keydown event: b
-resetting focus to middle input
-test tab case that should not advance focus
-- keydown event: b
-resetting focus to middle input
-test tab case that should not advance focus
-- keydown event: b
-resetting focus to middle input
-test tab case that should not advance focus
-- keydown event: b
-resetting focus to middle input
-test tab case that should not advance focus
-- keydown event: b