Remove the word likely from deprecated documentation

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index a57eac9..40f9d6b 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -1527,8 +1527,8 @@
  * Enable hooking functions in SSL module for hardware acceleration of
  * individual records.
  *
- * \deprecated This option is deprecated and will likely be removed in a
- *             future version of Mbed TLS.
+ * \deprecated This option is deprecated and will be removed in a future
+ *             version of Mbed TLS.
  *
  * Uncomment this macro to enable hooking functions.
  */