• Remove ruleset
• Remove rule
• Remove condition

Not all of these need a confirmation window before actually being removed, but at least "Ruleset" and "Rule" need it.

Best way to handle this would be to only ask for confirmation if the rule or ruleset contains something. If it is empty, nothing of value is lost anyway.
For removing a condition, you could do something similar where only a confirmation is shown when any value is different from the default setting.

Could also get rid of those buttons and put a "X" icon on reach row item of a list. Should be small and out of the way enough to not require any confirmation.