Drop TESTONLY from sample target. (#6485)
Drop TESTONLY from sample target. (#6485)

`static_library_demo` is not a test, so it can't depend on a `TESTONLY` target. We don't check this in CMake, outside of `-DIREE_BUILD_TESTS=OFF` builds, which will fail at configure time.
google/iree,google/iree,iree-org/iree,iree-org/iree,iree-org/iree,google/iree,iree-org/iree,google/iree,iree-org/iree,google/iree,iree-org/iree,iree-org/iree,google/iree,google/iree