Remove unnecessary configuration flag #496

Job	Run time
clang-format	6s
Windows MSVC Shared Release	1m 23s
Windows MSVC Shared Debug	1m 38s
Windows MSVC Static Release	2m 41s
Windows MSVC Static Debug	2m 11s
Windows ClangCL Shared Release	2m 32s
Windows ClangCL Shared Debug	4m 29s
Windows ClangCL Static Release	4m 28s
Windows ClangCL Static Debug	3m 57s
Windows Clang Shared Release	2m 16s
Windows Clang Shared Debug	1m 49s
Windows Clang Static Release	2m 31s
Windows Clang Static Debug	3m 49s
Linux GCC Shared Release	44s
Linux GCC Shared Debug	35s
Linux GCC Static Release	1m 17s
Linux GCC Static Debug	54s
Linux Clang Shared Release	1m 0s
Linux Clang Shared Debug	1m 11s
Linux Clang Static Release	1m 24s
Linux Clang Static Debug	1m 16s
macOS Clang Shared Release	1m 26s
macOS Clang Shared Debug	53s
macOS Clang Static Release	1m 21s
macOS Clang Static Debug	1m 11s
	47m 2s

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