DVO-1029: remove mentions of holesky (#622)

Holesky infra have been decommissioned, removing any mentions of it from the docs as well

Author: ilyaluk

docs/flashbots-auction/advanced/rpc-endpoint.mdx

@@ -19,7 +19,6 @@ Advanced users can interact with the RPC endpoint at `relay.flashbots.net`, or o
 | -------- | ---------------------------------------- |
 | Mainnet  | `https://relay.flashbots.net`            |
 | Sepolia  | `https://relay-sepolia.flashbots.net`    |
-| Holešky  | `https://relay-holesky.flashbots.net`    |
 
 The API provides JSON-RPC methods for interfacing with Flashbots. Below are some of the restrictions:
 

docs/flashbots-auction/advanced/testnets.mdx

@@ -10,7 +10,6 @@ Flashbots operates on Sepolia so that searchers can test Flashbots without riski
 | --- | --- |
 | Mainnet | `https://relay.flashbots.net` |
 | Sepolia | `https://relay-sepolia.flashbots.net` |
-| Holešky | `https://relay-holesky.flashbots.net` |
 
 ## Examples
 

docs/flashbots-mev-share/searchers/event-stream.mdx

@@ -73,7 +73,6 @@ Events currently represent pending transactions, but eventually may be expanded
 | Network | URL |
 |-|-|
 | Mainnet | https://mev-share.flashbots.net |
-| Holešky | https://mev-share-holesky.flashbots.net |
 | Sepolia | https://mev-share-sepolia.flashbots.net |
 
 The endpoint sends an event with the message `:ping` every 15 seconds if no other messages were sent in the last 15 seconds.

docs/flashbots-protect/additional-documentation/status-api.md

@@ -10,7 +10,6 @@ The Transaction Status API is also available on test networks. Below is a table
 | -------- | -------------------------------------------------- |
 | Mainnet  | `https://protect.flashbots.net/tx/` |
 | Sepolia  | `https://protect-sepolia.flashbots.net/tx/` |
-| Holešky  | `https://protect-holesky.flashbots.net/tx/` |
 
 
 

docs/flashbots-protect/quick-start.mdx

@@ -75,7 +75,6 @@ Below is the list of Flashbots Protect RPCs we currently support across Ethereum
 | ------- | ------------------------------------ |
 | Mainnet | `https://rpc.flashbots.net/fast`     |
 | Sepolia | `https://rpc-sepolia.flashbots.net/` |
-| Holešky | `https://rpc-holesky.flashbots.net/` |
 
 ## Stuck transactions