Remove explicit use of `jvm_flags` in `kt_jvm_test`
Remove explicit use of `jvm_flags` in `kt_jvm_test`

rules_kotlin now [support using `--jvmopt` with `kt_jvm_test`](https://github.com/bazelbuild/rules_kotlin/pull/782) .

(cherry picked from commit 8179705aee99f8f0463755cdb12b7cceb541530a)

bazelbuild/intellij,bazelbuild/intellij,bazelbuild/intellij,bazelbuild/intellij,bazelbuild/intellij,bazelbuild/intellij,bazelbuild/intellij