Remove large chrome.zip when get_chrome_sync is done? #233
Description
After running get_chrome_sync() from kaleido 1.0.0rc the "choreographer" folder is quite big. Looking in "choreographer/cli/browser_exe", I see that the compressed archive for chrome is still there ("chrome.zip"). On my system it is 161 MB, while the "chrome-linux64" folder is 346 MB, so > 30% space could be saved by deleting "chrome.zip".
It would be nice if the compressed file were removed by default, or if there was a flag to get_chrome_sync(cleanup=True) for removing the file after unpacking.