[gjs: 3/18] arg: Remove unnecessary forward declaration

[Philip Chimento <pchimento src gnome org>]

commit 564f977d4c76bf91b687637f367240f0528135a1
Author: Philip Chimento <philip chimento gmail com>
Date:   Mon Nov 23 11:11:24 2020 -0800

    arg: Remove unnecessary forward declaration
    
    This declaration is already present at the top of the file, it was just
    repeated.

 gi/arg.cpp | 7 -------
 1 file changed, 7 deletions(-)
---
diff --git a/gi/arg.cpp b/gi/arg.cpp
index 229cc663..d9485cfa 100644
--- a/gi/arg.cpp
+++ b/gi/arg.cpp
@@ -2862,13 +2862,6 @@ gjs_value_from_g_argument (JSContext             *context,
     return true;
 }
 
-GJS_JSAPI_RETURN_CONVENTION
-static bool gjs_g_arg_release_internal(JSContext  *context,
-                                         GITransfer  transfer,
-                                         GITypeInfo *type_info,
-                                         GITypeTag   type_tag,
-                                         GArgument  *arg);
-
 struct GHR_closure {
     JSContext *context;
     GjsAutoTypeInfo key_param_info, val_param_info;