Remove obsolete optimization

Change-Id: I2d43c009c62a7f4a4a2e0a6303bdfa692c4b8c8c
diff --git a/libs/hwui/Program.h b/libs/hwui/Program.h
index eb9ee7b..e9c666b 100644
--- a/libs/hwui/Program.h
+++ b/libs/hwui/Program.h
@@ -41,8 +41,8 @@
     #define PROGRAM_LOGD(...)
 #endif
 
-#define COLOR_COMPONENT_THRESHOLD (1.0f - (0.5f / PANEL_BIT_DEPTH))
-#define COLOR_COMPONENT_INV_THRESHOLD (0.5f / PANEL_BIT_DEPTH)
+#define COLOR_COMPONENT_THRESHOLD 1.0f
+#define COLOR_COMPONENT_INV_THRESHOLD 0.0f
 
 #define PROGRAM_KEY_TEXTURE 0x1
 #define PROGRAM_KEY_A8_TEXTURE 0x2