openxr changes

src/openxr/extensions.rs

@@ -49,40 +49,6 @@ impl Default for XrExtensions {
     }
 }
 
-macro_rules! unavailable_exts {
-    (
-        $exts:ty;
-        $(
-            $(
-                #[$meta:meta]
-            )*
-            $ident:ident
-        ),*
-        $(,)?
-    ) => {
-        impl $exts {
-            /// Returns any extensions needed by `required_exts` that aren't available in `self`
-            pub(crate) fn unavailable_exts(&self, required_exts: &Self) -> Vec<std::borrow::Cow<'static, str>> {
-                let mut exts = vec![];
-                $(
-                    $(
-                        #[$meta]
-                    )*
-                    if required_exts.0.$ident && !self.0.$ident {
-                        exts.push(std::borrow::Cow::Borrowed(stringify!($ident)))
-                    }
-                )*
-                for ext in required_exts.0.other.iter() {
-                    if !self.0.other.contains(ext) {
-                        exts.push(std::borrow::Cow::Owned(ext.clone()))
-                    }
-                }
-                exts
-            }
-        }
-    };
-}
-
 macro_rules! bitor {
     (
         $exts:ty;
@@ -288,4 +254,4 @@ macro_rules! impl_ext {
     };
 }
 
-impl_ext!(bitor, bitand, unavailable_exts);
+impl_ext!(bitor, bitand);