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

LayoutTests/fast/js/object-extra-comma-expected.txt

Index: LayoutTests/fast/js/object-extra-comma-expected.txt
diff --git a/LayoutTests/fast/js/object-extra-comma-expected.txt b/LayoutTests/fast/js/object-extra-comma-expected.txt
deleted file mode 100644
index 0f054bc3a72c1eadd2dd0adc12e88a97313f9451..0000000000000000000000000000000000000000
--- a/LayoutTests/fast/js/object-extra-comma-expected.txt
+++ /dev/null
@@ -1,14 +0,0 @@
-This test checks some object construction cases, including 5939: final comma in javascript object prevents parsing.
-
-On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
-
-
-PASS var foo = { 'bar' : 'YES' }; foo.bar is 'YES'
-PASS var foo = { 'bar' : 'YES', }; foo.bar is 'YES'
-PASS var foo = { 'bar' : 'YES' , }; foo.bar is 'YES'
-PASS var foo = { , 'bar' : 'YES' }; foo.bar threw exception SyntaxError: Unexpected token ,.
-PASS var foo = { 'bar' : 'YES',, }; foo.bar threw exception SyntaxError: Unexpected token ,.
-PASS successfullyParsed is true
-
-TEST COMPLETE
-