lib: remove erroneous JSDoc entry

The entry contains incorrect parameters and duplicates the subsequent
constructor entry. Remove it.

(I'm not sure why this is being caught by the linter on my local machine
but not in CI.)

Author: Trott

lib/internal/source_map/source_map.js

@@ -121,9 +121,6 @@ class StringCharIterator {
  * Implements Source Map V3 model.
  * See https://github.com/google/closure-compiler/wiki/Source-Maps
  * for format description.
- * @constructor
- * @param {string} sourceMappingURL
- * @param {SourceMapV3} payload
  */
 class SourceMap {
   #payload;