Remove backend module in renderer crate that has been unused since https://github.com/iced-rs/iced/pull/1932

renderer/src/backend.rs

@@ -1,100 +0,0 @@
-use crate::core::text;
-use crate::core::{Font, Point, Size};
-use crate::graphics::backend;
-
-use std::borrow::Cow;
-
-#[allow(clippy::large_enum_variant)]
-pub enum Backend {
-    TinySkia(iced_tiny_skia::Backend),
-    #[cfg(feature = "wgpu")]
-    Wgpu(iced_wgpu::Backend),
-}
-
-macro_rules! delegate {
-    ($backend:expr, $name:ident, $body:expr) => {
-        match $backend {
-            Self::TinySkia($name) => $body,
-            #[cfg(feature = "wgpu")]
-            Self::Wgpu($name) => $body,
-        }
-    };
-}
-
-impl backend::Text for Backend {
-    const ICON_FONT: Font = Font::with_name("Iced-Icons");
-    const CHECKMARK_ICON: char = '\u{f00c}';
-    const ARROW_DOWN_ICON: char = '\u{e800}';
-
-    fn default_font(&self) -> Font {
-        delegate!(self, backend, backend.default_font())
-    }
-
-    fn default_size(&self) -> f32 {
-        delegate!(self, backend, backend.default_size())
-    }
-
-    fn measure(
-        &self,
-        contents: &str,
-        size: f32,
-        line_height: text::LineHeight,
-        font: Font,
-        bounds: Size,
-        shaping: text::Shaping,
-    ) -> Size {
-        delegate!(
-            self,
-            backend,
-            backend.measure(contents, size, line_height, font, bounds, shaping)
-        )
-    }
-
-    fn hit_test(
-        &self,
-        contents: &str,
-        size: f32,
-        line_height: text::LineHeight,
-        font: Font,
-        bounds: Size,
-        shaping: text::Shaping,
-        position: Point,
-        nearest_only: bool,
-    ) -> Option<text::Hit> {
-        delegate!(
-            self,
-            backend,
-            backend.hit_test(
-                contents,
-                size,
-                line_height,
-                font,
-                bounds,
-                shaping,
-                position,
-                nearest_only,
-            )
-        )
-    }
-
-    fn load_font(&mut self, font: Cow<'static, [u8]>) {
-        delegate!(self, backend, backend.load_font(font));
-    }
-}
-
-#[cfg(feature = "image")]
-impl backend::Image for Backend {
-    fn dimensions(&self, handle: &crate::core::image::Handle) -> Size<u32> {
-        delegate!(self, backend, backend.dimensions(handle))
-    }
-}
-
-#[cfg(feature = "svg")]
-impl backend::Svg for Backend {
-    fn viewport_dimensions(
-        &self,
-        handle: &crate::core::svg::Handle,
-    ) -> Size<u32> {
-        delegate!(self, backend, backend.viewport_dimensions(handle))
-    }
-}