claws-mail: remove unrecognized options

* fixes following qa warnings:
  claws-mail-3.9.0: claws-mail: configure was passed unrecognised
    options: --disable-gnomeprint --disable-clamav-plugin
    --disable-aspell-test --enable-aspell [unknown-configure-option]

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>