Remove reference to SHAKE

Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
diff --git a/include/mbedtls/sha3.h b/include/mbedtls/sha3.h
index 0f6919b..77748be 100644
--- a/include/mbedtls/sha3.h
+++ b/include/mbedtls/sha3.h
@@ -170,8 +170,7 @@
 #if defined(MBEDTLS_SELF_TEST)
 /**
  * \brief          Checkup routine for the algorithms implemented
- *                 by this module: SHA3-224, SHA3-256, SHA3-384, SHA3-512,
- *                 SHAKE128, SHAKE256, cSHAKE128 and cSHAKE256.
+ *                 by this module: SHA3-224, SHA3-256, SHA3-384, SHA3-512.
  *
  * \return         0 if successful, or 1 if the test failed.
  */