Revert "libhwc2.1: Move DPP handling to ColorManager"

Revert submission 25793765-move-dpp-to-colormanager

Reason for revert: build break (b/319126962)

Reverted changes: /q/submissionid:25793765-move-dpp-to-colormanager

Change-Id: Ia93fe4dd80c0d05a0ea3a9cfe6da9343c583263f
diff --git a/libhwc2.1/libmaindisplay/ExynosPrimaryDisplayModule.cpp b/libhwc2.1/libmaindisplay/ExynosPrimaryDisplayModule.cpp
index a49dc3c..b5bb83a 100644
--- a/libhwc2.1/libmaindisplay/ExynosPrimaryDisplayModule.cpp
+++ b/libhwc2.1/libmaindisplay/ExynosPrimaryDisplayModule.cpp
@@ -253,9 +253,7 @@
     int count = 0;
 
     auto checkPreblending = [&](const int idx, ExynosMPPSource* mppSrc) -> int {
-        auto* colorManager = getColorManager();
-        if (!colorManager) return false;
-        auto& dpp = colorManager->getDppForLayer(mppSrc);
+        auto& dpp = getDppForLayer(mppSrc);
         mppSrc->mNeedPreblending =
                 dpp.EotfLut().enable | dpp.Gm().enable | dpp.Dtm().enable | dpp.OetfLut().enable;
         if (hwcCheckDebugMessages(eDebugTDM)) {