Resolve needless_continue pedantic clippy lint

    warning: this `continue` expression is redundant
       --> src/tokens.rs:385:41
        |
    385 | ...                   continue;
        |                       ^^^^^^^^
        |
        = help: consider dropping the `continue` expression
        = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_continue
        = note: `-W clippy::needless-continue` implied by `-W clippy::pedantic`
        = help: to override `-W clippy::pedantic` add `#[allow(clippy::needless_continue)]`

src/tokens.rs

@@ -382,7 +382,6 @@ impl<'a> Tokenizer<'a> {
                                 match ch {
                                     ' ' | '\t' => {
                                         me.chars.next();
-                                        continue;
                                     }
                                     '\n' => {
                                         me.chars.next();