gfile/g-i: Remove wrongly set finish-func annotations

The with_closures variants are not async functions per see. They don't have a GAsyncReadyCallback params.
diff --git a/gio/gfile.c b/gio/gfile.c
index c880b22..49ba81b 100644
--- a/gio/gfile.c
+++ b/gio/gfile.c
@@ -3900,7 +3900,7 @@
 }
 
 /**
- * g_file_copy_async_with_closures: (rename-to g_file_copy_async) (finish-func copy_finish):
+ * g_file_copy_async_with_closures: (rename-to g_file_copy_async):
  * @source: input [type@Gio.File]
  * @destination: destination [type@Gio.File]
  * @flags: set of [flags@Gio.FileCopyFlags]
@@ -4153,7 +4153,7 @@
 }
 
 /**
- * g_file_move_async_with_closures: (rename-to g_file_move_async) (finish-func move_finish):
+ * g_file_move_async_with_closures: (rename-to g_file_move_async):
  * @source: input [type@Gio.File]
  * @destination: destination [type@Gio.File]
  * @flags: set of [flags@Gio.FileCopyFlags]