Remove bswap_4 #3307

Job	Run time
Linux (gcc, shared)	6m 47s
Linux (gcc, amalgamation)	4m 46s
Linux (gcc, static)	4m 56s
Linux (clang, shared)	5m 40s
macOS (shared, clang)	5m 27s
macOS (amalgamation, clang)	5m 54s
Windows (shared, x86_64, windows-2022)	14m 23s
Windows (static, x86_64, windows-2022)	9m 49s
Windows (amalgamation, x86_64, windows-2022)	7m 44s
Windows (shared, x86, windows-2022)	14m 32s
Clang Tidy	28s
Analysis (coverage, gcc, ubuntu-22.04)	41m 13s
Analysis (sanitizer, msvc, windows-2022, jom)	18m 21s
Analysis (sanitizer, clang, ubuntu-22.04)	16m 52s
Analysis (sanitizer, gcc, ubuntu-22.04)	20m 53s
Analysis (valgrind, gcc, ubuntu-22.04)	20m 1s
Analysis (fuzzers, gcc, ubuntu-22.04)	11m 7s
Analysis (lint, gcc, ubuntu-22.04)	45s
Analysis (format, gcc, ubuntu-22.04)	1m 3s
Special (examples, gcc, ubuntu-22.04)	3m 54s
Special (minimized, gcc, ubuntu-22.04)	1m 6s
Special (bsi, gcc, ubuntu-22.04)	2m 55s
Cross (cross-i386, gcc, ubuntu-22.04)	5m 27s
Cross (cross-arm32, gcc, ubuntu-22.04)	15m 55s
Cross (cross-arm64, gcc, ubuntu-22.04)	9m 2s
Cross (cross-ppc64, gcc, ubuntu-22.04)	8m 48s
Cross (cross-riscv64, gcc, ubuntu-22.04)	8m 25s
Cross (cross-android-arm32, clang, ubuntu-22.04)	2m 36s
Cross (cross-android-arm64, clang, ubuntu-22.04)	2m 46s
Cross (static, gcc, windows-2022, mingw32-make)	11m 12s
Cross (cross-ios-arm64, clang, macos-13)	3m 50s
Cross (emscripten, emcc, ubuntu-22.04)	4m 31s
	4h 51m 8s

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