Remove typo Flask from requirements3.txt
Remove typo Flask from requirements3.txt

awest1339/multiscanner,MITRECND/multiscanner,awest1339/multiscanner,jmlong1027/multiscanner,jmlong1027/multiscanner,mitre/multiscanner,mitre/multiscanner,mitre/multiscanner,jmlong1027/multiscanner,awest1339/multiscanner,awest1339/multiscanner,MITRECND/multiscanner,jmlong1027/multiscanner