RFR 8215015: [TESTBUG] remove unneeded -Xfuture option from tests

[Harold David Seigel]

Hi,

Please review this change to remove the -Xfuture options from tests that 
do not need it.

Open Webrev: 
http://cr.openjdk.java.net/~hseigel/bug_8215015/webrev/index.html

JBS Bug:  https://bugs.openjdk.java.net/browse/JDK-8215015

The modified tests were run on Linux x64, Windows, Solaris, and Mac with 
default options.  Additionally, they were run on Linux x64 with 
verification turned off.

Thanks, Harold