Revert "[contextualsearch] wire new feature into build"

This reverts commit 8eb00cc0a03413e68e71c4938b74ff4dd8225da9.

Reason for revert: The feature did its job in U, not needed in V.

Change-Id: Ib935c8a958f1d4df531b986c3fe901c1e064e092
diff --git a/data/etc/Android.bp b/data/etc/Android.bp
index eedf141..8b2842a 100644
--- a/data/etc/Android.bp
+++ b/data/etc/Android.bp
@@ -353,12 +353,6 @@
 }
 
 prebuilt_etc {
-    name: "android.software.contextualsearch.prebuilt.xml",
-    src: "android.software.contextualsearch.xml",
-    defaults: ["frameworks_native_data_etc_defaults"],
-}
-
-prebuilt_etc {
     name: "android.software.device_id_attestation.prebuilt.xml",
     src: "android.software.device_id_attestation.xml",
     defaults: ["frameworks_native_data_etc_defaults"],