I agree, this package seems to have no activity at all, so unlikely with English branch, I don't see any reason to support it. Neither I see a way to remove it.

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Best regards,
Alex
 
03.01.2018, 18:42, "notify@aur.archlinux.org" <notify@aur.archlinux.org>:

ArchangeGabriel [1] filed a deletion request for thunderbird-
earlybird-ru [2]:

Severely outdated, only 1 vote.

[1] https://aur.archlinux.org/account/ArchangeGabriel/
[2] https://aur.archlinux.org/pkgbase/thunderbird-earlybird-ru/