Remove unused and expensive import
Remove unused and expensive import

skftn/pika,reddec/pika,Tarsbot/pika,Zephor5/pika,zixiliuyue/pika,knowsis/pika,fkarb/pika-python3,hugoxia/pika,jstnlef/pika,renshawbay/pika-python3,pika/pika,benjamin9999/pika,vrtsystems/pika,vitaly-krugl/pika,shinji-s/pika