Resolve redundant_closure_for_method_calls pedantic clippy lint

error: redundant closure
       --> src/number.rs:133:69
        |
    133 |                     return self.n.parse::<f64>().ok().map_or(false, |f| f.is_finite());
        |                                                                     ^^^^^^^^^^^^^^^^^ help: replace the closure with the method itself: `f64::is_finite`
        |
        = note: `-D clippy::redundant-closure-for-method-calls` implied by `-D clippy::pedantic`
        = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure_for_method_calls

src/lib.rs

@@ -353,7 +353,6 @@
     clippy::missing_errors_doc,
     clippy::must_use_candidate,
     // TODO
-    clippy::redundant_closure_for_method_calls,
     clippy::semicolon_if_nothing_returned,
 )]
 #![allow(non_upper_case_globals)]

src/number.rs

@@ -130,7 +130,7 @@ impl Number {
         {
             for c in self.n.chars() {
                 if c == '.' || c == 'e' || c == 'E' {
-                    return self.n.parse::<f64>().ok().map_or(false, |f| f.is_finite());
+                    return self.n.parse::<f64>().ok().map_or(false, f64::is_finite);
                 }
             }
             false