[tools][cts] Remove simplified codepath arg #4727

Job	Run time
CMake-windows-latest-Debug-msvc	13m 58s
Go Build and Test	53s
CMake-windows-latest-Release-msvc	17m 19s
CMake-ubuntu-latest-Debug-gcc	20m 20s
CMake-ubuntu-latest-Release-gcc	20m 26s
CMake-macos-latest-Debug-clang	22m 9s
CMake-macos-latest-Release-clang	24m 0s
CMake-macos-13-Debug-clang	51m 15s
CMake-macos-13-Release-clang	1h 4m 11s
	3h 54m 31s

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