[Merged by Bors] - Remove double-locking deadlock from HTTP API #13536

Job	Run time
cargo-fmt	19s
compile-with-beta-compiler	1m 1s
target-branch-check	1s
extract-msrv	4s
arbitrary-check	19s
cargo-audit	30s
beacon-chain-tests	19s
cargo-udeps	31s
cargo-vendor	30s
check-benchmarks	30s
check-msrv	30s
clippy	21s
debug-tests-ubuntu	18s
dockerfile-ubuntu	32s
doppelganger-protection-test	26s
ef-tests-ubuntu	19s
eth1-simulator-ubuntu	23s
execution-engine-integration-ubuntu	29s
merge-transition-ubuntu	17s
no-eth1-simulator-ubuntu	20s
op-pool-tests	17s
release-tests-ubuntu	19s
release-tests-windows	20s
slasher-tests	19s
state-transition-vectors-ubuntu	17s
syncing-simulator-ubuntu	16s
	9m 47s

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