Remove html_debug! (#357)

It's not documented anywhere, and `cargo expand` does the same thing.

CHANGELOG.md

@@ -2,6 +2,9 @@
 
 ## [Unreleased]
 
+- Remove `html_debug!`
+  [#357](https://github.com/lambda-fairy/maud/pull/357)
+
 ## [0.24.0] - 2022-08-12
 
 - Remove blanket `Render` impl for `T: Display`

maud/benches/complicated_maud.rs

@@ -96,7 +96,7 @@ fn render_complicated_template(b: &mut test::Bencher) {
     b.iter(|| {
         use crate::btn::{Button, RequestMethod};
         layout(
-            format!("Homepage of {}", year),
+            format!("Homepage of {year}"),
             html! {
                 h1 { "Hello there!" }
 

maud/src/lib.rs

@@ -14,7 +14,7 @@ extern crate alloc;
 use alloc::{borrow::Cow, boxed::Box, string::String};
 use core::fmt::{self, Arguments, Display, Write};
 
-pub use maud_macros::{html, html_debug};
+pub use maud_macros::html;
 
 mod escape;
 

maud/tests/splices.rs

@@ -121,6 +121,6 @@ fn splice_with_path() {
 #[test]
 fn nested_macro_invocation() {
     let best_pony = "Pinkie Pie";
-    let result = html! { (format!("{} is best pony", best_pony)) };
+    let result = html! { (format!("{best_pony} is best pony")) };
     assert_eq!(result.into_string(), "Pinkie Pie is best pony");
 }

maud_macros/src/lib.rs

@@ -20,14 +20,6 @@ pub fn html(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
     expand(input.into()).into()
 }
 
-#[proc_macro]
-#[proc_macro_error]
-pub fn html_debug(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
-    let expr = expand(input.into());
-    println!("expansion:\n{}", expr);
-    expr.into()
-}
-
 fn expand(input: TokenStream) -> TokenStream {
     let output_ident = TokenTree::Ident(Ident::new("__maud_output", Span::mixed_site()));
     // Heuristic: the size of the resulting markup tends to correlate with the