Remove Babel

.babelrc

@@ -1,20 +0,0 @@
-{
-	"presets": [
-		[
-			"env",
-			{
-				"targets": {
-					"browsers": [
-						"> 1%",
-						"last 2 versions",
-						"not ie <= 8"
-					]
-				},
-				"modules": false
-			}
-		]
-	],
-	"plugins": [
-		"external-helpers"
-	]
-}

package.json

@@ -41,9 +41,6 @@
 		"@types/chai": "^4.1.4",
 		"@types/mocha": "^5.2.5",
 		"@types/three": "^0.92.12",
-		"babel-cli": "^6.26.0",
-		"babel-plugin-external-helpers": "^6.22.0",
-		"babel-preset-env": "^1.7.0",
 		"chai": "^4.1.2",
 		"eslint": "^5.0.1",
 		"karma": "^2.0.4",
@@ -56,7 +53,6 @@
 		"puppeteer": "^1.5.0",
 		"rimraf": "^2.6.2",
 		"rollup": "^0.62.0",
-		"rollup-plugin-babel": "^3.0.4",
 		"rollup-plugin-license": "^0.7.0",
 		"rollup-plugin-node-resolve": "^3.3.0",
 		"rollup-plugin-uglify": "^4.0.0",