Remove command-buffer command handle ref counting #154

Job	Run time
macOS / Build (macos-13)	5m 28s
CUDA / Build & CTS (CUDA, OFF, OFF, Release, gcc, g++)	2m 22s
Level Zero / Build & CTS (L0, OFF, OFF, Release, gcc, g++)	8m 18s
Level Zero static / Build & CTS (L0, ON, ON, Release, gcc, g++)	8m 16s
Level Zero V2 / Build & CTS (L0_V2, OFF, OFF, Release, gcc, g++)	9m 22s
OpenCL / Build & CTS (OPENCL, Intel(R) OpenCL, OFF, OFF, Release, gcc, g++)	2m 25s
Source Checks / source-checks (ubuntu-22.04)	8m 53s
Source Checks / source-checks (windows-2022)	15m 16s
Level Zero + Native CPU (Loader) / Build & CTS (L0, NATIVE_CPU, OFF, OFF, Release, gcc, g++)	8m 37s
OpenCL + Native CPU (Loader) / Build & CTS (OPENCL, NATIVE_CPU, OPENCL:Intel(R) OpenCL, OFF, OFF, Release, gcc, g++)	5m 27s
HIP / Build & CTS (HIP, OFF, OFF, Release, gcc, g++)	6m 31s
Native CPU / Build & CTS (NATIVE_CPU, OFF, OFF, Release, gcc, g++)	1m 50s
	1h 22m 45s

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