message: simplify package.json
diff: "license": "MIT",
  "devDependencies": {
  "typechain": "../../packages/core",
  - "typechain-target-web3-1": "../../packages/typechain-target-web3-1"
  },
  "scripts": {
  "start": "typechain --target=truffle && typechain --target=web3-1 && typechain --target=ethers",
  