lib/sign: public API optimisation

Removed from public `ostree_sign_detached_metadata_append` function.
Renamed `metadata_verify` into `data_verify` to fit to real
functionality.

Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>

src/libostree/ostree-sign-ed25519.h

@@ -46,15 +46,15 @@ gboolean ostree_sign_ed25519_data (OstreeSign *self,
                                    GCancellable *cancellable,
                                    GError **error);
 
+gboolean ostree_sign_ed25519_data_verify (OstreeSign *self,
+                                          GBytes     *data,
+                                          GVariant   *signatures,
+                                          GError     **error);
+
 const gchar * ostree_sign_ed25519_get_name (OstreeSign *self);
 const gchar * ostree_sign_ed25519_metadata_key (OstreeSign *self);
 const gchar * ostree_sign_ed25519_metadata_format (OstreeSign *self);
 
-gboolean ostree_sign_ed25519_metadata_verify (OstreeSign *self,
-                                              GBytes     *data,
-                                              GVariant   *signatures,
-                                              GError     **error);
-
 gboolean ostree_sign_ed25519_set_sk (OstreeSign *self,
                                      GVariant *secret_key,
                                      GError **error);