Remove the local ASM config in remote config scenarios with ASM_FEATURES

[simon-id]

According to the spec, the remote config AppSec 1 click activation feature should not be active when appsec has been locally configured. We need to remove any DD_APPSEC_ENABLED for those test to work as intended.

[ameske]

I think this is just as simple as making sure that's not set for our scenario, since we run the remote config scenarios independently of everything else. Disabling DD_APPSEC_ENABLED won't get in the way of other tests if that's the case.

[ameske]

Addressed in #565 by b562c9c