6b485f1d3a
This device extensions was not completely supported in any layer. It had partial support (intercept) in draw_state and device_limits. This extension is being changed and has a formal proposal in Khronos as debug_marker_ext. Removing the existing extension since it is deprecated; once the debug_marker_ext gets registered by Khronos, layers might want to start using the ObjectTag/ObjectName commands to supplement error report messages in debug_report_ext. Since debug_report_ext might get changed as part of Khronos review, don't add it yet.
Vulkan-Headers
Vulkan Header files and API registry