Remove now invalid comment in pk_opaque_ecdsa_can_do()

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
diff --git a/library/pk_wrap.c b/library/pk_wrap.c
index 31645e1..d854330 100644
--- a/library/pk_wrap.c
+++ b/library/pk_wrap.c
@@ -1495,9 +1495,6 @@
 
 static int pk_opaque_ecdsa_can_do( mbedtls_pk_type_t type )
 {
-    /* For now ECDSA opaque PSA keys can only wrap ECC keypairs,
-     * as checked by setup_psa().
-     * Also, ECKEY_DH does not really make sense with the current API. */
     return( type == MBEDTLS_PK_ECKEY ||
             type == MBEDTLS_PK_ECDSA );
 }