Rollup merge of #112096 - workingjubilee:array-unzip, r=scottmcm

Remove array_zip

`[T; N]::zip` is "eager" but most zips are mapped. This causes poor optimization in generated code. This is a fundamental design issue and "zip" is "prime real estate" in terms of function names, so let's free it up again.

- FCP concluded in rust-lang/rust#80094 (comment)
- Closes rust-lang/rust#80094
- Closes rust-lang/rust#103555

Could use review to make sure we aren't losing any essential codegen tests.
r? `@scottmcm`

Author: matthiaskrgr

core/src/array/mod.rs

@@ -538,29 +538,6 @@ impl<T, const N: usize> [T; N] {
         drain_array_with(self, |iter| try_from_trusted_iterator(iter.map(f)))
     }
 
-    /// 'Zips up' two arrays into a single array of pairs.
-    ///
-    /// `zip()` returns a new array where every element is a tuple where the
-    /// first element comes from the first array, and the second element comes
-    /// from the second array. In other words, it zips two arrays together,
-    /// into a single one.
-    ///
-    /// # Examples
-    ///
-    /// ```
-    /// #![feature(array_zip)]
-    /// let x = [1, 2, 3];
-    /// let y = [4, 5, 6];
-    /// let z = x.zip(y);
-    /// assert_eq!(z, [(1, 4), (2, 5), (3, 6)]);
-    /// ```
-    #[unstable(feature = "array_zip", issue = "80094")]
-    pub fn zip<U>(self, rhs: [U; N]) -> [(T, U); N] {
-        drain_array_with(self, |lhs| {
-            drain_array_with(rhs, |rhs| from_trusted_iterator(crate::iter::zip(lhs, rhs)))
-        })
-    }
-
     /// Returns a slice containing the entire array. Equivalent to `&s[..]`.
     #[stable(feature = "array_as_slice", since = "1.57.0")]
     #[rustc_const_stable(feature = "array_as_slice", since = "1.57.0")]