Remove TODO

This todo doesn't need to happen since we're keeping both the int and float values for backwards compatibility.

Bug: 160141704
Test: manual
Change-Id: I26a5057acd7604578f3021c21a1412d6c1b7b0d6

core/java/android/os/PowerManager.java

@@ -273,7 +273,6 @@ public final class PowerManager {
 
     /**
      * Brightness value for fully off in float.
-     * TODO(brightnessfloat): rename this to BRIGHTNES_OFF and remove the integer-based constant.
      * @hide
      */
     public static final float BRIGHTNESS_OFF_FLOAT = -1.0f;