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

LayoutTests/fast/regex/quantified-assertions-expected.txt

Index: LayoutTests/fast/regex/quantified-assertions-expected.txt
diff --git a/LayoutTests/fast/regex/quantified-assertions-expected.txt b/LayoutTests/fast/regex/quantified-assertions-expected.txt
deleted file mode 100644
index c09147af198c7c554f595401e6f00f73100b1b55..0000000000000000000000000000000000000000
--- a/LayoutTests/fast/regex/quantified-assertions-expected.txt
+++ /dev/null
@@ -1,26 +0,0 @@
-This page tests assertions followed by quantifiers.
-
-On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
-
-
-
-Testing regexp: /(?=a){0}/gm
-PASS regexp.test('a') is true
-PASS regexp.lastIndex is 0
-
-Testing regexp: /(?=a){1}/gm
-PASS regexp.test('a') is true
-PASS regexp.lastIndex is 0
-
-Testing regexp: /(?!a){0}/gm
-PASS regexp.test('b') is true
-PASS regexp.lastIndex is 0
-
-Testing regexp: /(?!a){1}/gm
-PASS regexp.test('b') is true
-PASS regexp.lastIndex is 0
-PASS /^(?=a)?b$/.test("b") is true
-PASS successfullyParsed is true
-
-TEST COMPLETE
-