[OpenJDK 2D-Dev] RFR: 8241829 Cleanup the code for PrinterJob on windows

[Sergey Bylokhov]

Hello.
Please review the fix for jdk/client.

Bug: https://bugs.openjdk.java.net/browse/JDK-8241829
Fix: http://cr.openjdk.java.net/~serb/8241829/webrev.00

In PrintServiceLookupProvider.java we always pass NULL to
the notifyFirstPrinterChange as a name of the printer, so
we can remove the code which expects a non-null value.

-- 
Best regards, Sergey.