Remove commented-out test code.

A leftover from
https://boringssl-review.git.corp.google.com/c/boringssl/+/90907.
Sorry for that.

Bug: 491808272
Change-Id: I85a5b294820d6fd0cfba695934f20ef86a6a6964
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/92089
Presubmit-BoringSSL-Verified: Boringssl LUCI CQ <boringssl-scoped@luci-project-accounts.iam.gserviceaccount.com>
Commit-Queue: Xiangfei Ding <xfding@google.com>
Reviewed-by: Xiangfei Ding <xfding@google.com>
Auto-Submit: Rudolf Polzer <rpolzer@google.com>

crypto/x509/x509_test.cc

diff --git a/crypto/x509/x509_test.cc b/crypto/x509/x509_test.cc
index c3533fc..eff7b54 100644
--- a/crypto/x509/x509_test.cc
+++ b/crypto/x509/x509_test.cc
@@ -2367,12 +2367,6 @@
           // DN attribute is only supported for emails.
           continue;
         }
-        /*
-        if (t.name == "bäd-chäräcter@not-an-email.example") {
-          // X509_NAME_add_entry_by_NID refuses bad characters outright.
-          continue;
-        }
-        */
       }
       for (bool exclude : {false, true}) {
         SCOPED_TRACE(exclude);