Revert "overlay: Set config_defaultQrCodeComponent"

Replaced by an RRO

This reverts commit 273de22.

Change-Id: I00a6db6ff86008296b9fa081268c5dfa30b2f7c1

overlay/common/frameworks/base/core/res/res/values/config.xml

@@ -172,9 +172,6 @@
          should also be non-empty.-->
     <string name="config_rawContactsLocalAccountType" translatable="false">com.android.contacts</string>
 
-    <!-- Default component for QR code scanner -->
-    <string name="config_defaultQrCodeComponent" translatable="false">org.lineageos.aperture/.QrScannerActivity</string>
-
     <!-- Name of the font family to use in the default lockscreen clock -->
     <string name="config_clockFontFamily" translatable="false" />
 </resources>