[9] Review Request: 8056214 Stop including libjawt in libawt_xawt

[Sergey Bylokhov]

Hello.
Please review the fix for jdk 9.
libjawt was removed from the libawt_xawt. See bug report for additional 
information.

Bug: https://bugs.openjdk.java.net/browse/JDK-8056214
Webrev can be found at: http://cr.openjdk.java.net/~serb/8056214/webrev.00

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Best regards, Sergey.