No-op color management sysprop.

Color management in SurfaceFlinger will always be defaulted to true
beginning in Android 13.

Bug: 200309301
Test: Builds
Test: libsurfaceflinger_unittest

Change-Id: Icc83769f55cf6872cc913f8e0f4247019ba18e93
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 141d7ac..6c046fc 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -244,7 +244,7 @@
     static ui::Rotation internalDisplayOrientation;
 
     // Indicate if device wants color management on its display.
-    static bool useColorManagement;
+    static const constexpr bool useColorManagement = true;
 
     static bool useContextPriority;