diff --git a/lib/base64-decode.c b/lib/base64-decode.c
index 51db2679a2..b89db7ac30 100644
--- a/lib/base64-decode.c
+++ b/lib/base64-decode.c
@@ -91,99 +91,3 @@ lws_b64_encode_string(const char *in, int in_len, char *out, int out_size)
 
 	return done;
 }
-
-/*
- * returns length of decoded string in out, or -1 if out was too small
- * according to out_size
- */
-
-LWS_VISIBLE int
-lws_b64_decode_string(const char *in, char *out, int out_size)
-{
-	int len;
-	int i;
-	int done = 0;
-	unsigned char v;
-	unsigned char quad[4];
-
-	while (*in) {
-
-		len = 0;
-		for (i = 0; i < 4 && *in; i++) {
-
-			v = 0;
-			while (*in && !v) {
-
-				v = *in++;
-				v = (v < 43 || v > 122) ? 0 : decode[v - 43];
-				if (v)
-					v = (v == '$') ? 0 : v - 61;
-				if (*in) {
-					len++;
-					if (v)
-						quad[i] = v - 1;
-				} else
-					quad[i] = 0;
-			}
-		}
-		if (!len)
-			continue;
-
-		if (out_size < (done + len - 1))
-			/* out buffer is too small */
-			return -1;
-
-		if (len >= 2)
-			*out++ = quad[0] << 2 | quad[1] >> 4;
-		if (len >= 3)
-			*out++ = quad[1] << 4 | quad[2] >> 2;
-		if (len >= 4)
-			*out++ = ((quad[2] << 6) & 0xc0) | quad[3];
-
-		done += len - 1;
-	}
-
-	if (done + 1 >= out_size)
-		return -1;
-
-	*out++ = '\0';
-
-	return done;
-}
-
-int
-lws_b64_selftest(void)
-{
-	char buf[64];
-	int n;
-	int test;
-	static const char * const plaintext[] = {
-		"sanity check base 64"
-	};
-	static const char * const coded[] = {
-		"c2FuaXR5IGNoZWNrIGJhc2UgNjQ="
-	};
-
-	for (test = 0; test < sizeof plaintext / sizeof(plaintext[0]); test++) {
-
-		buf[sizeof(buf) - 1] = '\0';
-		n = lws_b64_encode_string(plaintext[test],
-				      strlen(plaintext[test]), buf, sizeof buf);
-		if (n != strlen(coded[test]) || strcmp(buf, coded[test])) {
-			lwsl_err("Failed lws_b64 encode selftest "
-					   "%d result '%s' %d\n", test, buf, n);
-			return -1;
-		}
-
-		buf[sizeof(buf) - 1] = '\0';
-		n = lws_b64_decode_string(coded[test], buf, sizeof buf);
-		if (n != strlen(plaintext[test]) ||
-						 strcmp(buf, plaintext[test])) {
-			lwsl_err("Failed lws_b64 decode selftest "
-					   "%d result '%s' %d\n", test, buf, n);
-			return -1;
-		}
-	}
-
-	return 0;
-}
diff --git a/lib/libwebsockets.c b/lib/libwebsockets.c
index 49ae8e0ee2..e2254e05f2 100644
--- a/lib/libwebsockets.c
+++ b/lib/libwebsockets.c
@@ -2098,11 +2098,6 @@ libwebsocket_create_context(struct lws_context_creation_info *info)
 	}
 #endif
 
-	/* selftest */
-
-	if (lws_b64_selftest())
-		goto bail;
-
 #ifndef LWS_NO_SERVER
 	/* set up our external listening socket we serve on */