message: Explicitly unset renderdoc capture env var when running replay mode
  * We don't support self-hosted captures this way, and this prevents a
  crash if the user accidentally left the env var set when running the
  replay program.
diff: @@ -5588,6 +5588,11 @@ ReplayCreateStatus Vulkan_CreateReplayDevice(const char *logfile, IReplayDriver
  {
  RDCDEBUG("Creating a VulkanReplay replay device");
  + // disable the layer env var, just in case the user left it set from a previous capture run
  + Process::RegisterEnvironmentModification(Process::EnvironmentModification(
  + Process::eEnvModification_Replace, "ENABLE_VULKAN_RENDERDOC_CAPTURE", "0"));
  + Process::ApplyEnvironmentModification();
  +
  void *module = Process::LoadModule(VulkanLibraryName);
  if(module == NULL)
  