Get rid of the leaky box.

It was leftover from an earlier time when there was generic code to load a
toml file and put it into a struct. It is no longer necessary.

src/config/config.rs

@@ -47,10 +47,8 @@ impl Config {
 			path.display(),
 		);
 
-		// this Box::leak() may not be great? something about leaking memory?
-		// i don't know what i'm doing here?
 		Ok(try_print!(
-			toml::from_str(Box::leak(file_contents.into_boxed_str())),
+			toml::from_str(&file_contents),
 			"Unable to parse toml: {}",
 			path.display(),
 		))