Auto merge of #8248 - Ms2ger:finite-zero, r=jdm

Remove the Zeroable definition for Finite<T>.

I have no idea why it was added, and it appears to be unused.

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components/script/dom/bindings/num.rs

@@ -4,16 +4,13 @@
 
 //! The `Finite<T>` struct.
 
-use core::nonzero::Zeroable;
 use num::Float;
 use std::ops::Deref;
 
 /// Encapsulates the IDL restricted float type.
 #[derive(JSTraceable, Clone, Copy, Eq, PartialEq)]
 pub struct Finite<T: Float>(T);
 
-unsafe impl<T: Float> Zeroable for Finite<T> {}
-
 impl<T: Float> Finite<T> {
     /// Create a new `Finite<T: Float>` safely.
     pub fn new(value: T) -> Option<Finite<T>> {