chore(chainlink-ens-external-adapter): [ETH-881] Remove subpackage (#1001)

Asking for PR review to get early feedback, see "Open questions"

## Open questions

This is not used anymore? Was this fully or partially replaced by
`ens-sync-script`?

Are the other files which we could remove, i.e. which were only used by
this deleted subpackage? (search for chainlink, maybe some of those?)

Author: teogeb

README.md

@@ -5,8 +5,4 @@ This is a monorepo containing various smart contracts and subgraphs used by the
 - [Network contracts](https://github.com/streamr-dev/network-contracts/tree/master/packages/network-contracts) The actual smart contracts used by the Streamr Network. Package exported from here has version 7.x.x and exports Typechain interfaces for Ethers v5.
 - [Network contracts NPM package](https://github.com/streamr-dev/network-contracts/tree/master/packages/npm-network-contracts) ABI and Typechain interfaces for the Streamr Network smart contracts for Ethers v6, plus scripts for interacting with the smart contracts.
 - [Network subgraphs](https://github.com/streamr-dev/network-contracts/tree/master/packages/network-subgraphs) The Graph subgraphs for many contracts in the `network-contracts` package
-- [config](https://github.com/streamr-dev/network-contracts/tree/master/packages/config) Addresses of deployed Streamr contracts on various chains, importable as an npm package
-
-## Other packages
-
-- [chainlink-ens-external-adapter](https://github.com/streamr-dev/network-contracts/tree/master/packages/chainlink-ens-external-adapter) Custom Chainlink job that implements an ENS oracle used to verify ENS ownership on mainnet when creating streams
+- [config](https://github.com/streamr-dev/network-contracts/tree/master/packages/config) Addresses of deployed Streamr contracts on various chains, importable as an npm package

chainlink/nodeConfiguration/config-rinkeby/.env

@@ -1,7 +1,7 @@
 {
   "name": "streamr-contracts",
   "version": "0.0.0",
-  "description": "Network Contracts with chainlink oracle and The Graph",
+  "description": "Network Contracts with The Graph",
   "author": "Streamr Network AG <[email protected]>",
   "license": "STREAMR NETWORK OPEN SOURCE LICENSE",
   "private": true,