301 redirect problem – can’t undo

I had a website that wasn't being updated much a few years ago, so I setup a 301 redirect in htaccess to send that traffic to another domain.

Now, I want to start using that original domain again, and have removed the 301 redirect.

However, I am finding that the 301 redirect is still cached or something in the bowels of the interweb. For the most part, visiting the site works fine…but there are a few issues…
-the rankings are much lower than they should be for the domains main…

301 redirect problem – can't undo