Enhancement: heading-no-size

### What should this rule do?

Flag if Heading has a `size` prop applied and suggest it be removed.

### What category of rule is this?

Suggests an alternate way of doing something (suggestion)

### Provide 2-3 code examples that would be flagged by this rule.

```
<Heading size="small">Hello</Heading>

<Heading size="24px">Goodbye</Heading>
```