fix buscarron old vars

roles/custom/matrix-bot-buscarron/templates/env.j2

@@ -4,9 +4,6 @@ BUSCARRON_HOMESERVER={{ matrix_bot_buscarron_homeserver }}
 BUSCARRON_DB_DSN={{ matrix_bot_buscarron_database_connection_string }}
 BUSCARRON_DB_DIALECT={{ matrix_bot_buscarron_database_dialect }}
 BUSCARRON_SPAMLIST={{ matrix_bot_buscarron_spamlist|join(" ") }}
-BUSCARRON_SPAM_HOSTS={{ matrix_bot_buscarron_spam_hosts|join(" ") }}
-BUSCARRON_SPAM_EMAILS={{ matrix_bot_buscarron_spam_emails|join(" ") }}
-BUSCARRON_SPAM_LOCALPARTS={{ matrix_bot_buscarron_spam_localparts|join(" ") }}
 BUSCARRON_SENTRY={{ matrix_bot_buscarron_sentry }}
 BUSCARRON_LOGLEVEL={{ matrix_bot_buscarron_loglevel }}
 BUSCARRON_BAN_SIZE={{ matrix_bot_buscarron_ban_size }}