Remove validator client docs (#1334)

validator_client/README.md

@@ -1,88 +0,0 @@
-# Lighthouse Validator Client
-
-The Validator Client (VC) is a stand-alone binary which connects to a Beacon
-Node (BN) and fulfils the roles of a validator.
-
-## Roles
-
-The VC is responsible for the following tasks:
-
-- Requesting validator duties (a.k.a. shuffling) from the BN.
-- Prompting the BN to produce a new block, when a validator's block production
-	duties require.
-- Completing all the fields on a new block (e.g., RANDAO reveal, signature) and
-	publishing the block to a BN.
-- Prompting the BN to produce a new attestation as per a validator's
-	duties.
-- Ensuring that no slashable messages are signed by a validator private key.
-- Keeping track of the system clock and how it relates to slots/epochs.
-
-The VC is capable of managing multiple validators in the same process tree.
-
-## Implementation
-
-_This section describes the present implementation of this VC binary._
-
-### Services
-
-Each validator is represented by two services, one which tracks the validator
-duties and another which performs block production duties.
-
-A separate thread is maintained for each service, for each validator. As such,
-a single validator utilises three (3) threads (one for the base VC and two for
-each service) and two validators utilise five (5) threads.
-
-#### `DutiesManagerService`
-
-Polls a BN and requests validator responsibilities, as well as a validator
-index. The outcome of a successful poll is a `EpochDuties` struct:
-
-```rust
-EpochDuties {
-	validator_index: u64,
-	block_production_slot: u64,
-}
-```
-
-This is stored in the `EpochDutiesMap`, a `HashMap` mapping `epoch ->
-EpochDuties`.
-
-#### `BlockProducerService`
-
-Polls the system clock and determines if a block needs to be produced. Reads
-from the `EpochDutiesMap` maintained by the `DutiesManagerService`.
-
-If block production is required, performs all the necessary duties to request,
-complete and return a block from the BN.
-
-### Configuration
-
-Validator configurations are stored in a separate data directory from the main Beacon Node
-binary. The validator data directory defaults to:
-`$HOME/.lighthouse-validator`, however an alternative can be specified on the command line
-with `--datadir`.
-
-The configuration directory structure looks like:
-```
-~/.lighthouse-validator
-    ├── 3cf4210d58ec
-    │   └── private.key
-    ├── 9b5d8b5be4e7
-    │   └── private.key
-    └── cf6e07188f48
-        └── private.key
-```
-
-Where the hex value of the directory is a portion of the validator public key.
-
-Validator keys must be generated using the separate `account_manager` binary, which will
-place the keys into this directory structure in a format compatible with the validator client.
-Be sure to check the readme for `account_manager`.
-
-The chain specification (slot length, BLS domain, etc.) defaults to foundation
-parameters, however is temporary and an upgrade will allow these parameters to be
-read from a file (or initialized on first-boot).
-
-## BN Communication
-
-The VC communicates with the BN via a gRPC/protobuf connection.