removed deprecated ishost api

Author: Y

cudaSift/SYCL/infra/device.hpp

@@ -204,21 +204,8 @@ namespace infra
  prop.set_host_unified_memory(
  get_info<sycl::info::device::host_unified_memory>());
 
- // max_clock_frequency parameter is not supported on host device
- if (is_host())
- {
- // This code may need to be updated. Currently max_clock_frequency for
- // host device is initialized with 1, in assumption that if other devices
- // exist and they are being selected based on this parameter, other
- // devices would have higher priority.
- prop.set_max_clock_frequency(1);
- }
- else
- {
- prop.set_max_clock_frequency(
+ prop.set_max_clock_frequency(
  get_info<sycl::info::device::max_clock_frequency>());
- }
-
  prop.set_max_compute_units(
  get_info<sycl::info::device::max_compute_units>());
  prop.set_max_work_group_size(