docs: fix docs for clearStorage

Author: jooohhn

src/amplitude-client.js

@@ -563,7 +563,6 @@ AmplitudeClient.prototype._sendEventsIfReady = function _sendEventsIfReady() {
 
 /**
  * Clears any stored events and metadata. Storage is then re-created on next event sending.
- * @constructor AmplitudeClient
  * @public
  * @return {boolean} True if metadata was cleared, false if none existed
  */