[test262] Remove skips on test cases should have passed

The original issue was resolved in https://github.com/tc39/test262/pull/2083

Change-Id: I5257982bc6d30a51c8fec4ecac31e54b5481a306
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3040879Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75862}

test/test262/test262.status

@@ -498,24 +498,6 @@
   'language/expressions/coalesce/tco-pos-undefined': [FAIL],
   'language/expressions/coalesce/tco-pos-null': [FAIL],
 
-  # https://github.com/tc39/test262/issues/2034
-  'language/expressions/postfix-decrement/arguments': [SKIP],
-  'language/expressions/postfix-decrement/arguments-nostrict': [SKIP],
-  'language/expressions/postfix-decrement/eval': [SKIP],
-  'language/expressions/postfix-decrement/eval-nostrict': [SKIP],
-  'language/expressions/postfix-increment/arguments': [SKIP],
-  'language/expressions/postfix-increment/arguments-nostrict': [SKIP],
-  'language/expressions/postfix-increment/eval': [SKIP],
-  'language/expressions/postfix-increment/eval-nostrict': [SKIP],
-  'language/expressions/prefix-decrement/arguments': [SKIP],
-  'language/expressions/prefix-decrement/arguments-nostrict': [SKIP],
-  'language/expressions/prefix-decrement/eval': [SKIP],
-  'language/expressions/prefix-decrement/eval-nostrict': [SKIP],
-  'language/expressions/prefix-increment/arguments': [SKIP],
-  'language/expressions/prefix-increment/arguments-nostrict': [SKIP],
-  'language/expressions/prefix-increment/eval': [SKIP],
-  'language/expressions/prefix-increment/eval-nostrict': [SKIP],
-
   # https://bugs.chromium.org/p/v8/issues/detail?id=9049
   'language/comments/hashbang/use-strict': [SKIP],