removing nsICollection.h because it no longer exists (fix build bustage).

xpcom/public/MANIFEST

@@ -1,33 +0,0 @@
-#
-# This is a list of local files which get copied to the mozilla:dist directory
-#
-
-nsCOMPtr.h
-nsCom.h
-nsAgg.h
-nsDebug.h
-nsEnumeratorUtils.h
-nsError.h
-nsHashtable.h
-nsID.h
-nsIID.h
-nsISimpleEnumerator.h
-nsISupportsUtils.h
-nsIPtr.h
-nsIRegistry.h
-nsIServiceManager.h
-nsIComponentManager.h
-nsISupportsArray.h
-nsRepository.h
-nsVector.h
-nsMacRepository.h
-nsTraceRefcnt.h
-plvector.h
-nsXPComFactory.h
-nsXPComCIID.h
-nsXPIDLString.h
-nsIEventQueue.h
-nsIEventQueueService.h
-nsICollection.h
-nsIAllocator.h
-nsIGenericFactory.h