Remove things

[matklad]

r? @CAD97

[CAD97]

Needs to be rebased.

[CAD97]

Quick lightning review before rebase:

5ed2f25: 👍
ae97120: #4
9c43d8d: 👍
2bab9f7:

We "use" the Copy bound in that we assume passing by-value is the correct way to do it. If we remove the Copy bound, TextSized::text_sized should take &self, because there's no reason for it to consume the input value. But because we want TextSize::of('🥰') to work, it should be taking impl TextSized by value. (Note that this is adding a : Sized bound on the usage there, so at the least TextSized should probably be : Sized.) So I think the best option is to make TextSized: Copy and document that it should be implemented for "text handles," i.e., free-copy references.

[matklad]

Yup, reason for Copy makes a ton of sense actually, re-added the bound