Remove Provisioning Profiles osx 10.7

hello,

there is a discussion about deleting Provisioning Profiles, but it is perhaps too old.

in osx 10.7 seems not folder "MobileDevice" to find the profile and pull to trash. and generally no profile is to be found in the system.

does it mean there is no profile installed at the mac or do I simply not find it?

we have problems to install an app at the ipad and guess that we have to delete the old profile...