Remove redundant package name in src/java.desktop/share/classes/sun/java2d/Disposer.java

[ninghua at linux.vnet.ibm.com]

A. The problem to be resolve or feature to be added
The class name includes package name java.security/java.lang.ref  
though they were already imported

B. The solution proposed by this patch
Remove package name java.security/java.lang.ref from class name

C: Modified file
src/java.desktop/share/classes/sun/java2d/Disposer.java

D:Patch
It is attached as webrev-OJDK-943-OpenJDK9.zip


Regards,

NingHua