Request: remove realcastmedia.com from hosts (new ownership)

The domain realcastmedia.com has recently changed ownership. The new owner (the person filing this request) will be keeping the domain free of advertising and tracking. Please remove realcastmedia.com from the hosts blocking lists.

Search the repository for `realcastmedia.com` to locate all occurrences in the hosted blocklist data. Remove only the matching domain entry from the relevant list file(s) and verify there are no remaining matches with the same search. Done when the hostname no longer appears anywhere in the blocklists and the diff contains only deletions for that domain.

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