style: include needless_lifetimes (#889)

Author: vil02

Cargo.toml

@@ -165,6 +165,5 @@ doc_lazy_continuation = { level = "allow", priority = 1 }
 needless_return = { level = "allow", priority = 1 }
 doc_overindented_list_items = { level = "allow", priority = 1 }
 # complexity-lints
-needless_lifetimes = { level = "allow", priority = 1 }
 precedence = { level = "allow", priority = 1 }
 manual_div_ceil = { level = "allow", priority = 1 }