util: deleted unreachable code from util.inspect

PR-URL: #24187
Reviewed-By: Сковорода Никита Андреевич <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>

Author: kiyomizumia

lib/internal/util/inspect.js

@@ -259,9 +259,8 @@ function strEscape(str) {
       last = i + 1;
     }
   }
-  if (last === 0) {
-    result = str;
-  } else if (last !== i) {
+
+  if (last !== i) {
     result += str.slice(last);
   }
   return `'${result}'`;