linuxkms: ignore warning when no renderer are active

internal/backends/linuxkms/display.rs

@@ -4,6 +4,7 @@
 use i_slint_core::api::PhysicalSize;
 use i_slint_core::platform::PlatformError;
 
+#[allow(unused)]
 pub trait Presenter {
     fn is_ready_to_present(&self) -> bool;
     fn register_page_flip_handler(

internal/backends/linuxkms/lib.rs

@@ -38,6 +38,7 @@ mod renderer {
     pub fn try_skia_then_femtovg_then_software(
         _device_opener: &crate::DeviceOpener,
     ) -> Result<Box<dyn FullscreenRenderer>, PlatformError> {
+        #[allow(unused)]
         type FactoryFn =
             fn(&crate::DeviceOpener) -> Result<Box<(dyn FullscreenRenderer)>, PlatformError>;