share: cleanup

Fix crash reported on the Play Store console.

Change-Id: Ic40bb2ea28881cbc2c438ea5797ba37f56fc022c
diff --git a/ring-android/app/src/main/res/layout/activity_qrcode.xml b/ring-android/app/src/main/res/layout/activity_qrcode.xml
index 4a9e0a9..5a63250 100644
--- a/ring-android/app/src/main/res/layout/activity_qrcode.xml
+++ b/ring-android/app/src/main/res/layout/activity_qrcode.xml
@@ -19,7 +19,7 @@
             android:layout_weight="1"
             android:background="?attr/colorPrimary"
             app:layout_scrollFlags="scroll|enterAlways"
-            app:popupTheme="@style/AppTheme"></androidx.appcompat.widget.Toolbar>
+            app:popupTheme="@style/AppTheme" />
 
         <com.google.android.material.tabs.TabLayout
             android:id="@+id/tabs"