Remove old tests that have been migrated to the v8 repo.

LayoutTests/fast/js/script-tests/excessive-comma-usage.js

Index: LayoutTests/fast/js/script-tests/excessive-comma-usage.js
diff --git a/LayoutTests/fast/js/script-tests/excessive-comma-usage.js b/LayoutTests/fast/js/script-tests/excessive-comma-usage.js
deleted file mode 100644
index b4d95d65968c6628718c5832ec39c7fdfa89e266..0000000000000000000000000000000000000000
--- a/LayoutTests/fast/js/script-tests/excessive-comma-usage.js
+++ /dev/null
@@ -1,20 +0,0 @@
-description("Test that we can handle excessively large initializer lists");
-
-var initializerTestString = "var a=0";
-for (var i = 0; i < 50000; i++)
-    initializerTestString += ",a"+i+"="+i;
-initializerTestString += ";return true;";
-
-var declarationTestString = "var a";
-for (var i = 0; i < 50000; i++)
-    declarationTestString += ",a"+i;
-declarationTestString += ";return true;";
-
-var commaExpressionTestString = "1";
-for (var i = 0; i < 50000; i++)
-    commaExpressionTestString += ",1";
-commaExpressionTestString += ";return true;";
-
-shouldBeTrue("new Function(initializerTestString)()");
-shouldBeTrue("new Function(declarationTestString)()");
-shouldBeTrue("new Function(commaExpressionTestString)()");