Update docs, there are no constructor http.MultipartFile.fromFile

[dnp1]

The constructor http.MultipartFile.fromFile is mentioned here: https://www.dartdocs.org/documentation/http/0.11.3%2B16/http/MultipartRequest-class.html

But it doesn't exists

[nex3]

The erroneous documentation has already been removed on master, so I'm going to close this.

[genesiscz]

There's a minor mistake in the example on that page,

var uri = Uri.parse("http://pub.dartlang.org/packages/create"); // uri
var request = new http.MultipartRequest("POST", url); // url

Also I see fromFile is still sitting there on the page but no fromFile method exists. This issue is NOT FIXED