Fix SHA224 documentation in default config.

Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index 8bd07a7..2479f74 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -3106,7 +3106,6 @@
  * \def MBEDTLS_SHA224_C
  *
  * Enable the SHA-224 cryptographic hash algorithm.
- * A future version of the library will have this option disabled by default.
  *
  * Requires: MBEDTLS_SHA256_C. The library does not currently support enabling
  *           SHA-224 without SHA-256.