Remove extra check for brightening layers

I8de3a05ec245788a5aa0b99d28aa36a678d12cbc missed this.

Bug: 329464641
Test: adb screencap
Change-Id: I83d2898ce7578d3de4ca4a6c682e04ca4daaf8b4
diff --git a/libs/renderengine/skia/SkiaRenderEngine.cpp b/libs/renderengine/skia/SkiaRenderEngine.cpp
index d344164..b901601 100644
--- a/libs/renderengine/skia/SkiaRenderEngine.cpp
+++ b/libs/renderengine/skia/SkiaRenderEngine.cpp
@@ -712,8 +712,7 @@
             [&](const auto& l) { return l.whitePointNits; });
 
     // ...and compute the dimming ratio if dimming is requested
-    const float displayDimmingRatio = display.targetLuminanceNits > 0.f &&
-                    maxLayerWhitePoint > 0.f && display.targetLuminanceNits > maxLayerWhitePoint
+    const float displayDimmingRatio = display.targetLuminanceNits > 0.f && maxLayerWhitePoint > 0.f
             ? maxLayerWhitePoint / display.targetLuminanceNits
             : 1.f;