Remove UNICODE characters
This fixes the coveralls issue.
diff --git a/src/mbedtls.c b/src/mbedtls.c
index 912cd7d..334ac3a 100644
--- a/src/mbedtls.c
+++ b/src/mbedtls.c
@@ -1097,8 +1097,7 @@
/*
//#include <stdio.h> //TODO
void rand_bytes(byte * pb, size_t cb){
-//ctx->aes_ctx->rk e null... i callchainen längst in. prova istället:
-//kolla https://tls.mbed.org/kb/how-to/add-a-random-generator
+// https://tls.mbed.org/kb/how-to/add-a-random-generator
//init random
mbedtls_ctr_drbg_context ctr_drbg;
char *personalization = "my_app_specific_string";