Remove ecdsa feature of libp2p #24054

Job	Run time
Check for 'skip-ci' label	3s
lockbud	41s
target-branch-check	4s
check-code	12m 41s
check-msrv	5m 15s
beacon-chain-tests	24m 58s
http-api-tests	35m 0s
release-tests-ubuntu	19m 42s
op-pool-tests	13m 56s
network-tests	19m 43s
slasher-tests	3m 22s
ef-tests-ubuntu	10m 35s
basic-simulator-ubuntu	21m 10s
debug-tests-ubuntu	7m 0s
fallback-simulator-ubuntu	18m 38s
execution-engine-integration-ubuntu	14m 33s
state-transition-vectors-ubuntu	6m 58s
cargo-udeps	7m 28s
compile-with-beta-compiler	16m 16s
cargo-sort	22s
cli-check	14m 13s
test-suite-success	6s
	4h 12m 44s

Provide feedback