diff --git a/re2/testing/re2_test.cc b/re2/testing/re2_test.cc
index ae101d34bbd0906be66a92308c2d796ef6fa15ff..df4a45152feedba6f292c27a8e33b8908f5033fc 100644
--- a/re2/testing/re2_test.cc
+++ b/re2/testing/re2_test.cc
@@ -1622,27 +1622,6 @@ TEST(RE2, Bug21371806) {
   ASSERT_TRUE(re.ok());
 }
 
-/*待处理的
-TEST(RE2, Bug26356109) {
-  // Bug in parser caused by factoring of common prefixes in alternations.
-
-  // In the past, this was factored to "a\\C*?[bc]". Thus, the automaton would
-  // consume "ab" and then stop (when unanchored) whereas it should consume all
-  // of "abc" as per first-match semantics.
-  RE2 re("a\\C*?c|a\\C*?b");
-  ASSERT_TRUE(re.ok());
-
-  std::string s = "abc";
-  StringPiece m;
-
-  ASSERT_TRUE(re.Match(s, 0, s.size(), RE2::UNANCHORED, &m, 1));
-  ASSERT_EQ(m, s) << " (UNANCHORED) got m='" << m << "', want '" << s << "'";
-
-  ASSERT_TRUE(re.Match(s, 0, s.size(), RE2::ANCHOR_BOTH, &m, 1));
-  ASSERT_EQ(m, s) << " (ANCHOR_BOTH) got m='" << m << "', want '" << s << "'";
-}
-*/
-
 TEST(RE2, Issue104) {
   // RE2::GlobalReplace always advanced by one byte when the empty string was
   // matched, which would clobber any rune that is longer than one byte.
@@ -1660,21 +1639,4 @@ TEST(RE2, Issue104) {
   ASSERT_EQ("小人小类小", s);
 }
 
-/*待处理的
-TEST(RE2, Issue310) {
-  // (?:|a)* matched more text than (?:|a)+ did.
-
-  std::string s = "aaa";
-  StringPiece m;
-
-  RE2 star("(?:|a)*");
-  ASSERT_TRUE(star.Match(s, 0, s.size(), RE2::UNANCHORED, &m, 1));
-  ASSERT_EQ(m, "") << " got m='" << m << "', want ''";
-
-  RE2 plus("(?:|a)+");
-  ASSERT_TRUE(plus.Match(s, 0, s.size(), RE2::UNANCHORED, &m, 1));
-  ASSERT_EQ(m, "") << " got m='" << m << "', want ''";
-}
-*/
-
 }  // namespace re2