Remove obsolete CDS check in Reflection::verify_class_access()

This check seems to be obsolete, as module information is now available even during -Xshare:dump

https://github.com/openjdk/jdk/blame/fe0ccdf5f8a5559a608d2e2cd2b6aecbe245c5ec/src/hotspot/share/runtime/reflection.cpp#L460-L465

    // Ignore modules for DumpSharedSpaces because we do not have any package
    // or module information for modules other than java.base.
    if (DumpSharedSpaces) {
      return ACCESS_OK;
    }