RFR 8015492: Remove DoubleStream.range methods

[Paul Sandoz]

Hi,

The following patch updates DoubleStream to remove the range methods:

  http://cr.openjdk.java.net/~psandoz/tl/JDK-8015492-rm-DoubleStream.range/webrev/

CCC is in progress.

It's best if we let numerical libraries integrate with the Stream API since the library writers are in a better position to design something that meets their use-cases.

Paul.