chore: fix cargo fmt (#5159)

Description
---
Removes unused cargo fmt options

Motivation and Context
---
Since [[1.5.0] 2022-06-14](https://github.com/rust-lang/rustfmt/blob/1d8491b120223272b13451fc81265aa64f7f4d5b/CHANGELOG.md#150-2022-06-14) the options `report_todo` and `report_fixme`  have been removed,  [5101](rust-lang/rustfmt#5101) and [5102](rust-lang/rustfmt#5102)

How Has This Been Tested?
---
Manual 
Cargo fmt does not complain about: 
```
Warning: Unknown configuration option `report_fixme`
Warning: Unknown configuration option `report_todo`
```

Author: SWvheerden

rustfmt.toml

@@ -16,8 +16,6 @@ overflow_delimited_expr = true
 reorder_imports = true
 reorder_modules = true
 reorder_impl_items = true
-report_todo = "Never"
-report_fixme = "Never"
 space_after_colon = true
 space_before_colon = false
 struct_lit_single_line = true