Clean-up legacy FIPS options #1266

Job	Run time
clippy	3m 6s
rustfmt	15s
Cross build from macOS to Linux (x86_64-unknown-linux-gnu)	2m 22s
Test FIPS integration	3m 5s
Test features	7m 56s
Test (arm-android)	4m 8s
Test (stable)	2m 36s
Test (x86_64-android)	3m 11s
Test (aarch64-ios)	3m 0s
Test (i686-linux)	3m 5s
Test (i686-android)	2m 35s
Test (x86_64-ios)	2m 31s
Test (aarch64-ios-sim)	2m 17s
Test (arm-linux)	3m 17s
Test (aarch64-linux)	4m 20s
Test (x86_64-msvc)	6m 14s
Test (arm64-android)	3m 4s
Test (x86_64-macos)	2m 33s
Test (arm64-macos)	1m 56s
Test (x86_64-mingw)	6m 13s
Test (i686-msvc)	8m 14s
Cross build from macOS to Linux (FIPS) (x86_64-unknown-linux-gnu)	4m 12s
	1h 20m 10s

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