Don't hint to add lifetime on trait impl

Don't provide hint to add lifetime on impl items that implement a trait.

```rust
use std::str::FromStr;

pub struct Foo<'a> {
    field: &'a str,
}

impl<'a> FromStr for Foo<'a> {
    type Err = ();
    fn from_str(path: &str) -> Result<Self, ()> {
        Ok(Foo { field: path })
    }
}
```

would give the following hint:

```nocode
help: consider using an explicit lifetime parameter as shown: fn from_str(path: &'a str) -> Result<Self, ()>
  --> <anon>:9:5
   |
9  |     fn from_str(path: &str) -> Result<Self, ()> {
   |     ^
```

which is never correct, since then there will be a lifetime mismatch
between the impl and the trait.

Remove this hint for impl items that implement a trait.

0 files changed, 0 insertions, 0 deletions