[grilo-plugins] grl-acoustid: Remove unnecessary source variables as parameters

[Victor Toso <victortoso src gnome org>]

commit ec7c90f1531f7d6e5d378d98b3ab7d6d6e8dee0a
Author: Sumaid Syed <sumaidsyed gmail com>
Date:   Mon Jul 29 16:33:48 2019 +0530

    grl-acoustid: Remove unnecessary source variables as parameters

 src/lua-factory/sources/grl-acoustid.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/lua-factory/sources/grl-acoustid.lua b/src/lua-factory/sources/grl-acoustid.lua
index 7d309b36..9a425e23 100644
--- a/src/lua-factory/sources/grl-acoustid.lua
+++ b/src/lua-factory/sources/grl-acoustid.lua
@@ -60,7 +60,7 @@ function grl_source_init (configs)
   return true
 end
 
-function grl_source_resolve (media, options, callback)
+function grl_source_resolve ()
   local url
   local media = grl.get_media_keys()