chore(package): remove unused dependencies (nyc, mocha, chai) && sourcemaps from build script

Author: michael-ciniawsky

package.json

@@ -10,7 +10,7 @@
     "lint": "eslint --cache src test",
     "webpack-defaults": "webpack-defaults",
     "start": "yarn run serve:dev src",
-    "build": "cross-env NODE_ENV=production babel -s true src -d dist --ignore 'src/**/*.test.js'",
+    "build": "cross-env NODE_ENV=production babel src -d dist --ignore 'src/**/*.test.js'",
     "clean:dist": "del-cli dist",
     "lint-staged": "lint-staged",
     "prebuild": "yarn run clean:dist",
@@ -33,7 +33,6 @@
     "babel-plugin-transform-object-rest-spread": "^6.23.0",
     "babel-polyfill": "^6.23.0",
     "babel-preset-env": "^1.2.2",
-    "chai": "^3.5.0",
     "cross-env": "^3.2.3",
     "del-cli": "^0.2.1",
     "eslint": "^3.18.0",
@@ -42,23 +41,19 @@
     "inspect-loader": "^1.0.0",
     "jest": "^19.0.2",
     "lint-staged": "^3.4.0",
-    "mocha": "^3.2.0",
     "nodemon": "^1.11.0",
     "nsp": "^2.6.3",
-    "nyc": "^10.1.2",
     "pre-commit": "^1.2.2",
     "standard-version": "^4.0.0",
     "webpack": "^2.2.1",
-    "webpack-defaults": "^0.4.2"
+    "webpack-defaults": "^0.4.4"
   },
   "licenses": "MIT",
   "files": [
-    "README.md",
-    "LICENSE",
     "dist"
   ],
   "engines": {
-    "node": ">=4.3 <5.0.0 || >=5.10"
+    "node": ">= 4.3 < 5.0.0 || >= 5.10"
   },
   "pre-commit": "lint-staged",
   "lint-staged": {
@@ -67,4 +62,4 @@
       "git add"
     ]
   }
-}
+}