CB-8210 Remove unused onDestroy channel (close #99)
CB-8210 Remove unused onDestroy channel (close #99)

- Channel was defined as internal event and fired by javascript eval()
- Rather than change firing of event, simpler to remove as was not used

the1sky/cordova-js,lvrookie/cordova-js,yedeveloper/cordova-js,andfaulkner/cordovajs-cms-one,Zekom/cordova-js,revolunet/cordova-js,revolunet/cordova-js,lvrookie/cordova-js,corimf/cordova-js,yedeveloper/cordova-js,danrixd/cordova-js,Zekom/cordova-js,andfaulkner/cordovajs-cms-one,corimf/cordova-js,Adilmar/cordova-js,Adilmar/cordova-js,danrixd/cordova-js,Zekom/cordova-js,danrixd/cordova-js,corimf/cordova-js,Adilmar/cordova-js,apache/cordova-js,lvrookie/cordova-js,yedeveloper/cordova-js,the1sky/cordova-js,the1sky/cordova-js,revolunet/cordova-js,andfaulkner/cordovajs-cms-one