Remove slices from buffers

* code no longer required, as it will be handled in vrcore

Bug: 38076195
Test: Manually ran testing
Change-Id: Id28918a3bf73b99cbb57aad4c21251b7a9623074
diff --git a/libs/vr/libdisplay/display_client.cpp b/libs/vr/libdisplay/display_client.cpp
index dbee9f2..eaf919e 100644
--- a/libs/vr/libdisplay/display_client.cpp
+++ b/libs/vr/libdisplay/display_client.cpp
@@ -141,9 +141,8 @@
   ALOGD_IF(TRACE, "Surface::CreateQueue: Allocating %zu buffers...", capacity);
   for (size_t i = 0; i < capacity; i++) {
     size_t slot;
-    const size_t kSliceCount = 1;
-    const int ret = producer_queue->AllocateBuffer(width, height, format, usage,
-                                                   kSliceCount, &slot);
+    const int ret =
+        producer_queue->AllocateBuffer(width, height, format, usage, &slot);
     if (ret < 0) {
       ALOGE(
           "Surface::CreateQueue: Failed to allocate buffer on queue_id=%d: %s",