Merge pull request #151 from boostorg/150-remove-resp3read-and-resp3a… #378

Job	Run time
Visual Studio 16 2019 v142 Boost 1.81.0 Release	11m 57s
Visual Studio 17 2022 v142 Boost 1.81.0 Release	13m 54s
posix (gcc, g++-11, g++-11, ubuntu-22.04, -std=c++17)	11m 48s
posix (gcc, g++-11, g++-11, ubuntu-22.04, -std=c++20)	11m 50s
posix (clang, clang++-11, clang-11, ubuntu-22.04, -std=c++17)	6m 0s
posix (clang, clang++-11, clang-11, ubuntu-22.04, -std=c++20)	5m 53s
posix (clang, clang++-13, clang-13, ubuntu-22.04, -std=c++17)	5m 45s
posix (clang, clang++-13, clang-13, ubuntu-22.04, -std=c++20)	7m 36s
posix (clang, clang++-14, clang-14 libc++-14-dev libc++abi-14-dev, ubuntu-22.04, -std=c++17 -stdl...	11m 26s
posix (clang, clang++-14, clang-14 libc++-14-dev libc++abi-14-dev, ubuntu-22.04, -std=c++20 -stdl...	9m 59s
	1h 36m 8s

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