remove -Xint from runtime tests

[Roland Westrelin]

> Most of the runtime valhalla tests take only a seconds, FWIW I'd like to 
> see both "-Xint" and "-Xcomp" (i.e. multiple jtreg run tags).

This?

http://cr.openjdk.java.net/~roland/valhalla/runtimetests/webrev.01/

Roland.