FIXUP: Remove PIPELINE_DELTA

commit 57a757fda4f6a62cb1187b015f28119ce9c5a2b2
Author: Courtney Goeltzenleuchter <courtney@LunarG.com>
Date:   Wed Mar 25 15:37:49 2015 -0600

    xgl: Remove PIPELINE_DELTA.

    bug: 13065
    header: 0.60.0

    Remove PIPELINE_DELTA.

    Add functions for creating and loading pipeline derivatives.
diff --git a/layers/mem_tracker.cpp b/layers/mem_tracker.cpp
index 2d840dc..9d703c6 100644
--- a/layers/mem_tracker.cpp
+++ b/layers/mem_tracker.cpp
@@ -1226,7 +1226,7 @@
     XGL_RESULT result = nextTable.CreateGraphicsPipelineDerivative(device, pCreateInfo, basePipeline, pPipeline);
     if (result == XGL_SUCCESS) {
         loader_platform_thread_lock_mutex(&globalLock);
-        insertGlobalObjectNode(*pPipeline, pCreateInfo->sType, pCreateInfo, sizeof(XGL_GRAPHICS_PIPELINE_CREATE_INFO), "graphics_pipeline");
+        addObjectInfo(*pPipeline, pCreateInfo->sType, pCreateInfo, sizeof(XGL_GRAPHICS_PIPELINE_CREATE_INFO), "graphics_pipeline");
         loader_platform_thread_unlock_mutex(&globalLock);
     }
     return result;