CB-5631 Removed SimpleTrackingInputStream.read(byte[] buffer)

InputStream.read(byte[] buffer) calls InputStream.read(byte[] bytes, int
offset, int count).  As SimpleTrackingInputStream overrides both these
methods a call to SimpleTrackingInputStream.read(byte[] buffer) results
in a call to SimpleTrackingInputStream.read(byte[] bytes, int offset,
int count) - and two calls to SimpleTrackingInputStream.updateBytesRead,
so the counter bytesRead gets incremented twice for each read.