Remove 2.3 test
Remove 2.3 test

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