Fix unnecessary error message during GATT discovery

Bug: 31637098
Change-Id: Ib2545e7827bd338d2e22c88836818fce23e7a057
diff --git a/btif/src/btif_gatt_client.c b/btif/src/btif_gatt_client.c
index c70fa49..7ad4f08 100644
--- a/btif/src/btif_gatt_client.c
+++ b/btif/src/btif_gatt_client.c
@@ -497,6 +497,12 @@
             break;
         }
 
+        case BTA_GATTC_SEARCH_RES_EVT:
+        {
+            /* Do nothing */
+            break;
+        }
+
         case BTA_GATTC_READ_DESCR_EVT:
         {
             btgatt_read_params_t data;