[bulk] Decensored and uncensored

remove alias decensored -> uncensored

Link to request

I think that decensored and uncensored are two different thing to an extent where I don't think that the alias should remain.
Decensoring looks more like a third-party editing and therefore an action, just like doing a nude filter. While "uncensored" is the result of that decensoring and when the artist doesn't censor it for example.

If the alias should get removed, I'd like to imply decensored to uncensored.

Previous: topic #6250, topic #11912

Well, it seems that this alias was created without a discussion and the concepts are distinct enough.

The bulk update request #960 has been approved.

Didn't really want to have to make the call on this given my vocal opposition to the alias, but I'll go ahead and remove it to see how this tag works out. If it proves that it didn't add anything then we can redo this alias.