[foozzie] Remove obsolete suppressions

Respective differences were fixed and the suppressions didn't fire
anymore according to the statistics.

No-Try: true
Bug: chromium:664068, chromium:667678
Change-Id: I5e1aa802e0b0288a73d0f236c154289ab45314a0
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2035878Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66100}

tools/clusterfuzz/v8_suppressions.py

@@ -81,10 +81,6 @@ IGNORE_TEST_CASES = {
 # Regular expressions are assumed to be compiled. We use regexp.search.
 IGNORE_OUTPUT = {
   '': {
-    'crbug.com/664068':
-        re.compile(r'RangeError(?!: byte length)', re.S),
-    'crbug.com/667678':
-        re.compile(r'\[native code\]', re.S),
     'crbug.com/689877':
         re.compile(r'^.*SyntaxError: .*Stack overflow$', re.M),
   },
@@ -116,9 +112,6 @@ ALLOWED_LINE_DIFFS = [
 
   # crbug.com/680064. This subsumes one of the above expressions.
   r'^(.*)TypeError: .* function$',
-
-  # crbug.com/664068
-  r'^(.*)(?:Array buffer allocation failed|Invalid array buffer length)(.*)$',
 ]
 
 # Lines matching any of the following regular expressions will be ignored.