Removed aligned ZST requirement from docs of read_/write_unaligned.

[kennytm]

This is just a copy-paste error.

[rust-highfive]

r? @rkruppe

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[hanna-kruppe]

@bors r+ rollup

[bors]

📌 Commit 9223512 has been approved by rkruppe

[RalfJung]

This forgot to update the same text in three other places. I will submit a follow-up.

In the future, please remember that all these pointer methods exist as free-standing functions, as methods on *mut, and sometimes as methods on *const. Doc fixes need to be applied to all of them.

[kennytm]

The three inherent methods doesn't contain this paragraph.

rust/src/libcore/ptr.rs

Lines 2108 to 2122 in 0071157

	/// Reads the value from `self` without moving it. This leaves the
	/// memory in `self` unchanged.
	///
	/// Unlike `read`, the pointer may be unaligned.
	///
	/// See [`ptr::read_unaligned`] for safety concerns and examples.
	///
	/// [`ptr::read_unaligned`]: ./ptr/fn.read_unaligned.html
	#[stable(feature = "pointer_methods", since = "1.26.0")]
	#[inline]
	pub unsafe fn read_unaligned(self) -> T
	where T: Sized,
	{
	read_unaligned(self)
	}

[RalfJung]

oops sorry for the noise, I forgot that we removed some of these duplicates, including the ones here. And I looked at the wrong version of the docs. :(