Add lint to useless_attribute exclude

Author: RuairidhWilliamson

clippy_lints/src/attrs/useless_attribute.rs

@@ -51,6 +51,7 @@ pub(super) fn check(cx: &LateContext<'_>, item: &Item<'_>, attrs: &[Attribute])
                                         | "module_name_repetitions"
                                         | "single_component_path_imports"
                                         | "disallowed_types"
+                                        | "anon_trait_imports"
                                 )
                             }) {
                                 return;

tests/ui/anon_trait_imports.fixed

@@ -262,8 +262,6 @@ mod allow_lint_mod {
 }
 
 mod allow_lint_import {
-    // False positive for useless_attribute
-    #[allow(clippy::useless_attribute)]
     #[allow(clippy::anon_trait_imports)]
     use std::any::Any;
 

tests/ui/anon_trait_imports.rs

@@ -262,8 +262,6 @@ mod allow_lint_mod {
 }
 
 mod allow_lint_import {
-    // False positive for useless_attribute
-    #[allow(clippy::useless_attribute)]
     #[allow(clippy::anon_trait_imports)]
     use std::any::Any;