feat!: remove libsodium vrf library. #3193

Job	Run time
cleanup-runs	9s
install-tparse	13s
split-test-files	23s
test-cosmovisor	37s
build (amd64, gcc)	54s
build (arm64, aarch64-linux-gnu-gcc, g++-aarch64-linux-gnu)	2m 0s
test-race (00)	6m 20s
test-race (01)	5m 46s
test-race (02)	3m 48s
test-race (03)	3m 29s
tests (00)	7m 7s
tests (01)	8m 43s
tests (02)	7m 57s
tests (03)	6m 32s
upload-coverage-report	36s
	54m 34s

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