Revert "Added filesystem, database and traffic usage to shelly info output."

This reverts commit a212a06c67eb1fc854d8a83c3bbb6593df19d430.

Conflicts:
	CHANGELOG.md
Fixed wrong usage values given by shelly info command.

Also do not make second request for getting usage informations.

[#68525608]
Merge pull request #129 from shellycloud/68525608-wrong-values-for-usage

68525608 wrong values for usage