mconn-crypt: remove hand crafter vapi

src/mconn-crypt.vapi

@@ -1,12 +0,0 @@
-/* mconn-crypt.vapi generated by vapigen, do not modify. */
-
-namespace MConn {
-	[CCode (cheader_filename = "mconn-crypt.h", ref_function="mconn_crypt_ref", unref_function = "mconn_crypt_unref")]
-	[Compact]
-	public class Crypt {
-		public unowned GLib.Bytes decrypt (GLib.Bytes data) throws GLib.Error;
-		[CCode (has_construct_function = false)]
-		public Crypt.for_key_path (string path);
-		public unowned string get_public_key_pem ();
-	}
-}