Remove ENABLE_ONE_SEARCH

TL;DR;;
It's no longer bound to the lifecycle of application

Bug: 223750757
Bug: 221956299

Test: device_config commands

Signed-off-by: Hyunyoung Song <hyunyoungs@google.com>
Change-Id: I044bf00fe7272439d2ed4def419f91b4d786fb7a
diff --git a/src/com/android/launcher3/config/FeatureFlags.java b/src/com/android/launcher3/config/FeatureFlags.java
index 278bcf2..588f2a2 100644
--- a/src/com/android/launcher3/config/FeatureFlags.java
+++ b/src/com/android/launcher3/config/FeatureFlags.java
@@ -89,9 +89,6 @@
     public static final BooleanFlag ENABLE_DEVICE_SEARCH = new DeviceFlag(
             "ENABLE_DEVICE_SEARCH", true, "Allows on device search in all apps");
 
-    public static final BooleanFlag ENABLE_ONE_SEARCH = new DeviceFlag("ENABLE_ONE_SEARCH", false,
-            "Use homescreen search box to complete allApps searches");
-
     public static final BooleanFlag ENABLE_FLOATING_SEARCH_BAR =
             getDebugFlag("ENABLE_FLOATING_SEARCH_BAR", false,
                     "Keep All Apps search bar at the bottom (but above keyboard if open)");