diff --git a/test/kcapi-main.c b/test/kcapi-main.c
index 67fb53f..7556796 100644
--- a/test/kcapi-main.c
+++ b/test/kcapi-main.c
@@ -637,23 +637,9 @@ static int aux_test_rng(const char *name, const uint8_t *seed, uint32_t seedlen)
 	return 0;
 }

-static int is_fips_mode(void)
-{
-	char c;
-	FILE *f = fopen("/proc/sys/crypto/fips_enabled", "r");
-	if (!f)
-		return 0;
-	if (fread(&c, 1, 1, f) < 1)
-		c = '0';
-	fclose(f);
-	return c == '1';
-}
-
 static int auxiliary_tests(void)
 {
 	struct kcapi_handle *handle = NULL;
-	const char *ansi_cprng_name = is_fips_mode() ? "fips(ansi_cprng)"
-	                                             : "ansi_cprng";
 	int ret = 0;

         if (kcapi_aead_init(&handle, "ccm(aes)", 0)) {
@@ -711,28 +697,5 @@ static int auxiliary_tests(void)
 	if (aux_test_rng("drbg_nopr_ctr_aes256", NULL, 0))
 		ret++;

-	/* X9.31 RNG must require seed */
-	printf("X9.31 missing seeding: ");
-	if (!aux_test_rng(ansi_cprng_name, NULL, 0))
-		ret++;
-	/* X9.31 seed too short */
-	printf("X9.31 insufficient seeding: ");
-	if (!aux_test_rng(ansi_cprng_name,
-			  (uint8_t *)
-			  "\x00\x01\x02\x03\x04\x05\x06\x07\x08"
-			  "\x00\x01\x02\x03\x04\x05\x06\x07\x08", 16))
-		ret++;
-	/* X9.31 seed right sized short */
-	if (aux_test_rng(ansi_cprng_name,
-			 (uint8_t *)
-			 "\x00\x01\x02\x03\x04\x05\x06\x07\x08"
-			 "\x00\x01\x02\x03\x04\x05\x06\x07\x08"
-			 "\x00\x01\x02\x03\x04\x05\x06\x07\x08"
-			 "\x00\x01\x02\x03\x04\x05\x06\x07\x08", 32)) {
-		printf("Error for %s: kernel module ansi_cprng present?\n",
-		       ansi_cprng_name);
-		ret++;
-	}
-
 	return ret;
 }