nx609j: remove twrpapp section

Change-Id: I12b5b2752857afb58ff266ceec42ebda4f158821
diff --git a/_nubia/nubianx609j.markdown b/_nubia/nubianx609j.markdown
index 3c6f644..8dbcd60 100644
--- a/_nubia/nubianx609j.markdown
+++ b/_nubia/nubianx609j.markdown
@@ -2,7 +2,7 @@
 layout: device
 title:  "Nubia ZTE 红魔电竞游戏手机 (Red Magic)"
 codename: nx609j
-downloadfolder: "nx609j, nx609j_SAR"
+downloadfolder: nx609j
 supportstatus: Current
 maintainer: youyim, Captain_Throwback
 oem: Nubia
@@ -15,18 +15,6 @@
 
 {% include supportstatus.html %}
 
-<html>
-<div class='page-heading' id='app-install'>App Install Method (Requires Root):</div>
-<a id='app'></a>
-<hr />
-<p class="text">Download the Official TWRP App (root required):</p>
-<ul class="text">
-    <li><a href="https://play.google.com/store/apps/details?id=me.twrp.twrpapp">Play Store (recommended)</a></li>
-    <li><a href="https://dl.twrp.me/twrpapp/">No Play Store?&nbsp;Download the latest version here.</a></li>
-</ul>
-<p class="text">Install the app and open it.&nbsp;Agree to the Terms.&nbsp;Select TWRP Flash. Select your device from the device list (nx609j or nx609j_SAR) and choose a version. The file will download to your Downloads folder. Browse to and select the file. Tap on Flash to Recovery. Find out <a href="https://twrp.me/app/">more about the app here.</a></p>
-</html>
-
 <div class='page-heading' id='download'>Download Links:</div>
 <hr />
 <p class="text">For Oreo firmware - legacy system setup:</p>