Remove InterruptNumber

xtensa-lx/src/interrupt.rs

@@ -2,27 +2,6 @@
 
 use core::arch::asm;
 
-/// Trait for enums of external interrupt numbers.
-///
-/// This trait should be implemented by a peripheral access crate (PAC)
-/// on its enum of available external interrupts for a specific device.
-/// Each variant must convert to a u16 of its interrupt number,
-/// which is its exception number - 16.
-///
-/// # Safety
-///
-/// This trait must only be implemented on enums of device interrupts. Each
-/// enum variant must represent a distinct value (no duplicates are permitted),
-/// and must always return the same value (do not change at runtime).
-///
-/// These requirements ensure safe nesting of critical sections.
-pub unsafe trait InterruptNumber: Copy {
-    /// Return the interrupt number associated with this variant.
-    ///
-    /// See trait documentation for safety requirements.
-    fn number(self) -> u16;
-}
-
 /// Disables all interrupts and return the previous settings
 #[inline]
 pub fn disable() -> u32 {