codegen: macros: remove media_type wrapper

My pull request for `const` constructor has been merged:
<picoHz/mediatype#24>

Author: spikespaz

codegen/src/generator.rs

@@ -330,7 +330,7 @@ fn rank_media_type(
     index: usize,
     preference: &[MediaClass],
 ) -> impl Ord + use<> {
-    use crate::macros::media_type as new;
+    use mediatype::media_type as new;
 
     let media_class = MediaClass::from(media_type);
     let essence = media_type.essence();
@@ -412,10 +412,9 @@ pub enum MediaClass {
 
 impl From<&MediaType<'_>> for MediaClass {
     fn from(other: &MediaType) -> Self {
+        use mediatype::media_type as new;
         use mediatype::names::*;
 
-        use crate::macros::media_type as new;
-
         let essence = other.essence();
 
         if essence == new!(APPLICATION / JSON)

codegen/src/macros.rs

@@ -45,21 +45,3 @@ macro_rules! __static_json {
         )*
     }
 }
-
-/// Construct a constant [`MediaType`][mediatype::MediaType].
-///
-/// This simply forwards tokens to [`mediatype::media_type`],
-/// but wraps the invocation in a `const` block.
-///
-/// It can be removed when [PR#24] is merged, if ever.
-///
-/// [PR#24]: https://github.com/picoHz/mediatype/pull/24
-#[doc(inline)]
-pub use crate::__media_type as media_type;
-
-// <https://github.com/picoHz/mediatype/pull/24>
-#[doc(hidden)]
-#[macro_export]
-macro_rules! __media_type {
-    ($($tt:tt)+) => { const { mediatype::media_type!($($tt)+) } }
-}