Replace old M_ASN1_* macros with their functions

M_ASN1_* is an old quirk from a very very old OpenSSL. They're just
wrappers over identically-named functions at this point.

Bug: none
TEST=ci
Change-Id: I1a204d6c1cca62861d7f11bf3c7adfa24bd47e59
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/217040
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Alexander Aprelev <aam@google.com>
Auto-Submit: David Benjamin <davidben@google.com>
diff --git a/runtime/bin/security_context.cc b/runtime/bin/security_context.cc
index ee431c8..95028ee 100644
--- a/runtime/bin/security_context.cc
+++ b/runtime/bin/security_context.cc
@@ -755,12 +755,12 @@
 }
 
 static Dart_Handle ASN1TimeToMilliseconds(ASN1_TIME* aTime) {
-  ASN1_UTCTIME* epoch_start = M_ASN1_UTCTIME_new();
+  ASN1_UTCTIME* epoch_start = ASN1_UTCTIME_new();
   ASN1_UTCTIME_set_string(epoch_start, "700101000000Z");
   int days;
   int seconds;
   int result = ASN1_TIME_diff(&days, &seconds, epoch_start, aTime);
-  M_ASN1_UTCTIME_free(epoch_start);
+  ASN1_UTCTIME_free(epoch_start);
   if (result != 1) {
     // TODO(whesse): Propagate an error to Dart.
     Syslog::PrintErr("ASN1Time error %d\n", result);