Remove reduntant dotenv configs

oracle/config/affirmation-request-watcher.config.js

@@ -1,4 +1,3 @@
-require('dotenv').config()
 const baseConfig = require('./base.config')
 const erc20Abi = require('../../contracts/build/contracts/ERC20').abi
 const { ERC_TYPES } = require('../src/utils/constants')

oracle/config/foreign-sender.config.js

@@ -1,4 +1,3 @@
-require('dotenv').config()
 const baseConfig = require('./base.config')
 
 const { web3Foreign } = require('../src/services/web3')

oracle/config/home-sender.config.js

@@ -1,4 +1,3 @@
-require('dotenv').config()
 const baseConfig = require('./base.config')
 
 const { web3Home } = require('../src/services/web3')