[Quickstart] Turn off QS on legacy Pixels

Bug: 277898824
Change-Id: I1b60c0e67be94d988df515876ec763b1bc08bb7a
Test: manually test

device-lynx.mk

@@ -278,8 +278,3 @@ PRODUCT_PACKAGES += \
     SettingsOverlayG0DZQ \
     SettingsOverlayGHL1X \
     SettingsOverlayGWKK3
-
-# Setup Wizard device-specific settings
-PRODUCT_PRODUCT_PROPERTIES += \
-    setupwizard.feature.enable_quick_start_flow_for_debug=true \
-