util: remove unnecessary template strings

PR-URL: https://github.com/nodejs/node/pull/59201
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Zeyu "Alex" Yang <himself65@outlook.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: theanarkh <theratliter@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

lib/util.js

@@ -181,7 +181,7 @@ function styleText(format, text, { validateStream = true, stream = process.stdou
               // Dim and bold are not mutually exclusive, so we need to reapply
               return `${match}${escapeStyleCode(code[0])}`;
             }
-            return `${escapeStyleCode(code[0])}`;
+            return escapeStyleCode(code[0]);
           }
           return match;
         },