Remove two duplicate watchdog calls

Hi Nancy,

There are two watchdog calls in weblinks_checker.module which I modified and/or replaced as part of #472970: Enhancements to weblinks_checker but the originals got left in by mistake so they need to be deleted.

The first is immediately after the line setting $extra = $response->error, and is now covered by the two calls within the following conditional blocks which take into account the new messaging detail options.

The second is just after the $status == '301' testing, where the new call adds more detail.

I have attached a patch to delete these two lines, rolled against Dev of 28th Aug.

Jonathan