Update README.md

Author: gre

README.md

@@ -40,9 +40,6 @@ Returns a Promise of the image URI.
     - `"base64"`: encode as base64 and returns the raw string. Use only with small images as this may result of lags (the string is sent over the bridge). *N.B. This is not a data uri, use `data-uri` instead*.
     - `"data-uri"`: same as `base64` but also includes the [Data URI scheme](https://en.wikipedia.org/wiki/Data_URI_scheme) header.
 
-   . if true, the promise returns the base64 encoded data instead of the uri. Defaults to `false`.
-
-
 ## Getting started
 
 ```