| Remove the option to build the library without any entropy sources |
| ------------------------------------------------------------------ |
| |
| This does not affect users who use the default `mbedtls_config.h`, as this option was |
| already off by default. |
| |
| If you were using the `MBEDTLS_TEST_NULL_ENTROPY` option and your platform |
| doesn't have any entropy source, you should use `MBEDTLS_ENTROPY_NV_SEED` |
| and make sure your device is provisioned with a strong random seed. |
| Alternatively, for testing purposes only, you can create and register a fake |
| entropy function. |