Don't unzip response in browsers

This reduces the browserifed size from 471 KB to 268 KB.

index.js

@@ -47,7 +47,7 @@ function requestAsEventEmitter(opts) {
 				return;
 			}
 
-			ee.emit('response', unzipResponse(res));
+			ee.emit('response', typeof unzipResponse === 'function' ? unzipResponse(res) : res);
 		}).once('error', function (err) {
 			ee.emit('error', new got.RequestError(err, opts));
 		});

package.json

@@ -19,6 +19,9 @@
   "engines": {
     "node": ">=0.10.0"
   },
+  "browser": {
+    "unzip-response": false
+  },
   "scripts": {
     "test": "xo && ava"
   },