Cleanup

app/src/main/java/eu/faircode/email/HtmlHelper.java

@@ -1081,10 +1081,6 @@ public class HtmlHelper {
         return preview;
     }
 
-    static String getPreviewText(String html) {
-        return JsoupEx.parse(html).text();
-    }
-
     static String getText(String html) {
         final StringBuilder sb = new StringBuilder();