Fix Doxygen documentation attached to non-existent elements
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/include/mbedtls/platform.h b/include/mbedtls/platform.h
index bad442e..a5a43ac 100644
--- a/include/mbedtls/platform.h
+++ b/include/mbedtls/platform.h
@@ -297,10 +297,8 @@
* you can set mbedtls_setbuf to a function that
* does nothing.
*
- * \param setbuf_func The \c setbuf function implementation.
- * It is always called with `buf` equal to `NULL`.
- *
- * \return \c 0 on success, negative on error.
+ * The library always calls this function with
+ * `buf` equal to `NULL`.
*/
extern void (*mbedtls_setbuf)( FILE *stream, char *buf );