Update names of lib targets

[nicoburns]

While the package names of the crates have all been updated to stylo*, it seems like that name of the crate within the package is still style* in some cases. This causes the docs.rs url to be https://docs.rs/stylo/latest/style rather than https://docs.rs/stylo/latest/stylo.

This PR changes this to be consistent by simply deleting the name = "..." lines which causes the crate name to default to the package name.

It also removes the crate_name attribute from the stylo_traits crate. These need to match the crate name in Cargo.toml. And as upstream have not yet renamed this crate keeping this line would mean extra diff. This line comes from the very first version of style_traits in 2015 (d7ba5ee) and none of the other crates have this attribute so I strongly suspect it is not necessary.

[Loirooriol]

https://doc.rust-lang.org/rust-by-example/attribute/crate.html

it is important to note that both the crate_type and crate_name attributes have no effect whatsoever when using Cargo

So was this added in case that cargo is not used??

I'm a bit worried about accidentally breaking something that I'm missing.

[nicoburns]

So was this added in case that cargo is not used??

I think so. See: https://web.mit.edu/rust-lang_v1.25/arch/amd64_ubuntu1404/share/doc/rust/html/rust-by-example/attribute/crate.html Given the timing of this code (when Cargo was still only a few months old), I suspect it may have been written with a pre-cargo world in mind.