Fix Collector Associations

gistfile1.py

# Remove non-existent devices from performance monitors                         
from Products.ZenModel.PerformanceConf import PerformanceConf                   
for pmon in dmd.Monitors.Performance.objectValues():                            
    if not isinstance(pmon, PerformanceConf): continue                          
    for device in pmon.devices():                                               
        try:                                                                    
            bah = device.primaryAq()                                            
        except Exception:                                                       
            print "Removing %s from %s" % (device.id, pmon.id)                  
            pmon.devices._remove(device)                                        
                                                                                
# Save changes                                                                  
commit()