diff --git a/ext/standard/config.m4 b/ext/standard/config.m4
index 8e77e75134c9e..87f41b25eb9d5 100644
--- a/ext/standard/config.m4
+++ b/ext/standard/config.m4
@@ -398,22 +398,6 @@ if test "$ac_cv_strptime_decl_fails" = "yes"; then
   AC_DEFINE([HAVE_STRPTIME_DECL_FAILS], 1, [whether strptime() declaration fails])
 fi
 
-dnl
-dnl Check for arc4random on BSD systems
-dnl
-AC_CHECK_DECLS([arc4random_buf])
-
-dnl
-dnl Check for CCRandomGenerateBytes
-dnl header absent in previous macOs releases
-dnl
-AC_CHECK_HEADERS([CommonCrypto/CommonRandom.h], [], [],
-[
-	#include <sys/types.h>
-	#include <Availability.h>
-	#include <CommonCrypto/CommonCryptoError.h>
-])
-
 dnl
 dnl Check for argon2
 dnl