Google has phased out its “change location” search filter in their search tools. This tool was very handy for SEOs who wanted to see what search results would be returned for searches made in locations other than their own. Now local SEOs cannot see results for the areas they are optimizing for.
We have been noticing that the feature was only appearing occasionally over the last few weeks, so like many other tools it was phased out and not dropped completely. However, it seems like it is gone for good now. Google quietly dropped the feature and then later told Search Engine Land that the feature was getting little use, so it was dropped.