Remove shebangs from python files since theyre compiled to pyz anyway

[gpalmz]

Script is still interpreted as python when run as seen in quickstart:

grant.palmer@COMP-JF7QV5QJJH azure % python ./integration_quickstart/dist/azure_integration_quickstart.pyz
Missing required environment variables: DD_APP_KEY, DD_API_KEY, DD_SITE, WORKFLOW_ID

The shebangs also aren't needed at all if we're already running the script with the python command directly