Remove statefullness from DKG instances #554

Job	Run time
yarn-test (stable, wasm32-unknown-unknown)	4m 33s
check	43s
wasm-test (1.67, wasm32-unknown-unknown)	7m 0s
python-test (stable, wasm32-unknown-unknown, 3.11)	4m 8s
wasm-test (stable, wasm32-unknown-unknown)	7m 6s
python-test (stable, wasm32-unknown-unknown, 3.12)	4m 12s
test (x86_64-unknown-linux-gnu, 1.67)	2m 49s
test (x86_64-unknown-linux-gnu, stable)	2m 42s
compile-benchmarks	5m 47s
codecov	10m 48s
benchmark	0s
	49m 48s

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