Remove irrelevant documentation notes

Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
diff --git a/include/mbedtls/mbedtls_config.h b/include/mbedtls/mbedtls_config.h
index 3afc99b..9b616de 100644
--- a/include/mbedtls/mbedtls_config.h
+++ b/include/mbedtls/mbedtls_config.h
@@ -2483,11 +2483,6 @@
  * Enable the CMAC (Cipher-based Message Authentication Code) mode for block
  * ciphers.
  *
- * \note When the underlying implementation of the CMAC algorithm is provided
- *       by an alternate implementation, that alternate implementation may opt
- *       to not support AES-192 or 3DES as underlying block ciphers for the CMAC
- *       operation.
- *
  * Module:  library/cmac.c
  *
  * Requires: MBEDTLS_CIPHER_C, MBEDTLS_AES_C or MBEDTLS_DES_C
diff --git a/tf-psa-crypto/drivers/builtin/include/mbedtls/cmac.h b/tf-psa-crypto/drivers/builtin/include/mbedtls/cmac.h
index 0fa08e4..03179a2 100644
--- a/tf-psa-crypto/drivers/builtin/include/mbedtls/cmac.h
+++ b/tf-psa-crypto/drivers/builtin/include/mbedtls/cmac.h
@@ -79,12 +79,6 @@
  *                      To start a CMAC computation using the same key as a previous
  *                      CMAC computation, use mbedtls_cipher_cmac_finish().
  *
- * \note                When the CMAC implementation is supplied by an alternate
- *                      implementation (through a PSA driver), some ciphers
- *                      may not be supported by that implementation, and thus
- *                      return an error. Alternate implementations must support
- *                      AES-128 and AES-256, and may support AES-192 and 3DES.
- *
  * \param ctx           The cipher context used for the CMAC operation, initialized
  *                      as one of the following types: MBEDTLS_CIPHER_AES_128_ECB,
  *                      MBEDTLS_CIPHER_AES_192_ECB, MBEDTLS_CIPHER_AES_256_ECB,