Don't build GoogleSearch

GoogleSearch is being replaced by QuickSearchBox, which
includes Google search.

Change-Id: Ief2d1136b8977b0fc6e2b5d97221e5c0bc620daf
diff --git a/target/product/core.mk b/target/product/core.mk
index 210c83d..3767f22 100644
--- a/target/product/core.mk
+++ b/target/product/core.mk
@@ -16,7 +16,6 @@
     ApplicationsProvider \
     ContactsProvider \
     DownloadProvider \
-    GoogleSearch \
     MediaProvider \
     PicoTts \
     SettingsProvider \