hg: jdk/jdk: 8215015: [TESTBUG] remove unneeded -Xfuture option from tests

[harold.seigel at oracle.com]

Changeset: 3add7ef7c40c
Author:    hseigel
Date:      2018-12-10 13:24 -0500
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/3add7ef7c40c

8215015: [TESTBUG] remove unneeded -Xfuture option from tests
Summary: Remove the option from the tests
Reviewed-by: lfoltan, coleenp

! test/langtools/tools/javac/boxing/T6348760.java
! test/langtools/tools/javac/generics/inference/6240565/T6240565.java
! test/langtools/tools/javac/scope/6225935/T6225935.java