Remove Goerli support (#5770)

* Delete Goerli

* Generate validator manager test vectors

* Fix newlines in CLI docs

* Fix deposit-cli tests

* Run web3signer tests for Holesky from Bellatrix

* Fix mainnet bellatrix web3signer test

* Merge remote-tracking branch 'origin/unstable' into rm-goerli

* Fix snafu

beacon_node/execution_layer/src/engine_api/http.rs

@@ -238,7 +238,6 @@ pub mod deposit_methods {
     /// Represents an eth1 chain/network id.
     #[derive(Debug, PartialEq, Clone, Serialize, Deserialize)]
     pub enum Eth1Id {
-        Goerli,
         Mainnet,
         Custom(u64),
     }
@@ -262,7 +261,6 @@ pub mod deposit_methods {
         fn into(self) -> u64 {
             match self {
                 Eth1Id::Mainnet => 1,
-                Eth1Id::Goerli => 5,
                 Eth1Id::Custom(id) => id,
             }
         }
@@ -273,7 +271,6 @@ pub mod deposit_methods {
             let into = |x: Eth1Id| -> u64 { x.into() };
             match id {
                 id if id == into(Eth1Id::Mainnet) => Eth1Id::Mainnet,
-                id if id == into(Eth1Id::Goerli) => Eth1Id::Goerli,
                 id => Eth1Id::Custom(id),
             }
         }