Cleanup aragon contract leftovers

and use hardhat localhost as default network

lib/contracts/acl.js

@@ -1,17 +0,0 @@
-const Base = require('./base');
-const EthersUtils = require('ethers').utils;
-
-class Acl extends Base {
-  hasPermission (fromAddress, contractAddress, roleID, params = null) {
-    let roleHash = EthersUtils.keccak256(EthersUtils.toUtf8Bytes(roleID));
-
-    return this.hasPermission(
-      fromAddress,
-      contractAddress,
-      roleHash,
-      params
-    );
-  }
-}
-
-module.exports = Acl;

lib/contracts/index.js

@@ -4,6 +4,4 @@ module.exports = {
   Proposal: require('./proposal'),
   Token: require('./token'),
   Reimbursement: require('./reimbursement'),
-  Kernel: require('./kernel'),
-  Acl: require('./acl'),
 };

lib/contracts/kernel.js

@@ -1,24 +0,0 @@
-const namehash = require('ethers').utils.namehash;
-const Base = require('./base');
-
-const KERNEL_APP_ADDR_NAMESPACE = '0xd6f028ca0e8edb4a8c9757ca4fdccab25fa1e0317da1188108f7d2dee14902fb';
-
-class Kernel extends Base {
-  constructor (contract) {
-    super(contract);
-    this.apm = 'open.aragonpm.eth'; // can be overwritten if needed
-  }
-
-  getApp (appName) {
-    if (appName === 'Acl') {
-      return this.contract.acl();
-    }
-    return this.contract.getApp(KERNEL_APP_ADDR_NAMESPACE, this.appNamehash(appName));
-  }
-
-  appNamehash (appName) {
-    return namehash(`kredits-${appName.toLowerCase()}.${this.apm}`);
-  }
-}
-
-module.exports = Kernel;