Remove trailing semicolon in librustdoc

Author: Aaron1011

src/librustdoc/html/markdown.rs

@@ -1055,7 +1055,7 @@ fn markdown_summary_with_limit(md: &str, length_limit: usize) -> (String, bool)
     fn push(s: &mut String, text_length: &mut usize, text: &str) {
         s.push_str(text);
         *text_length += text.len();
-    };
+    }
 
     'outer: for event in Parser::new_ext(md, Options::ENABLE_STRIKETHROUGH) {
         match &event {