Revert addition of env var defs to yarn dev

Addresses review comment #162 (comment)

Author: feuGeneA

package.json

@@ -11,7 +11,7 @@
         "clean:docker": "shx rm -rf 0x_mesh/db",
         "build": "tsc -p tsconfig.json",
         "test": "ETHEREUM_RPC_URL=http://localhost:8545 CHAIN_ID=1337 RFQT_API_KEY_WHITELIST='[\"koolApiKey1\"]' RFQT_MAKER_ENDPOINTS='[\"http://localhost:4000\"]' mocha --require source-map-support/register --require make-promises-safe lib/test/**/*_test.js --timeout 100000 --exit",
-        "dev": "ETHEREUM_RPC_URL=http://localhost:8545 CHAIN_ID=1337 RFQT_API_KEY_WHITELIST='[\"koolApiKey1\"]' RFQT_MAKER_ENDPOINTS='[\"http://localhost:4000\"]' nodemon -r dotenv/config src/index.ts | pino-pretty",
+        "dev": "nodemon -r dotenv/config src/index.ts | pino-pretty",
         "dev:service:http": "nodemon -r dotenv/config src/runners/http_service_runner.ts | pino-pretty",
         "dev:service:sra_http": "nodemon -r dotenv/config src/runners/http_sra_service_runner.ts | pino-pretty",
         "dev:service:staking_http": "nodemon -r dotenv/config src/runners/http_staking_service_runner.ts | pino-pretty",