[retro-gtk] retro-core-descriptor: Make 2 functions static

[Adrien Plazas <aplazas src gnome org>]

commit 35216388804bb79dabd7e0c701f6a660849aad60
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Sat Feb 22 17:58:03 2020 +0500

    retro-core-descriptor: Make 2 functions static

 retro-gtk/retro-core-descriptor.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
---
diff --git a/retro-gtk/retro-core-descriptor.c b/retro-gtk/retro-core-descriptor.c
index 1759e6c..1313af7 100644
--- a/retro-gtk/retro-core-descriptor.c
+++ b/retro-gtk/retro-core-descriptor.c
@@ -224,8 +224,7 @@ retro_core_descriptor_check_has_required_key (RetroCoreDescriptor  *self,
                  group);
 }
 
-// FIXME static
-void
+static void
 retro_core_descriptor_check_libretro_group (RetroCoreDescriptor  *self,
                                             GError              **error)
 {
@@ -274,8 +273,7 @@ retro_core_descriptor_check_libretro_group (RetroCoreDescriptor  *self,
   }
 }
 
-// FIXME static
-void
+static void
 retro_core_descriptor_check_platform_group (RetroCoreDescriptor  *self,
                                             const gchar          *group,
                                             GError              **error)