Removed stream files from manifest.

xpcom/io/MANIFEST

@@ -3,11 +3,8 @@ nsFileSpec.h
 nsFileSpecImpl.h
 nsFileSpecStreaming.h
 nsFileStream.h
-nsIBaseStream.h
 nsIByteBufferInputStream.h
 nsIFileStream.h
-nsIInputStream.h
-nsIOutputStream.h
 nsIStringStream.h
 nsIUnicharInputStream.h
 nsSpecialSystemDirectory.h