Revert "Modify liblight"

* On z2_plus with ZUK edits for the leds kernel part with just don't have these files anymore, so it's pointless to keep this edit

This reverts commit fd8ba7f.

Change-Id: Ie9d0b7b1caa9650eb6ad60296257366f9490e5eb

liblight/lights.c

@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2008 The Android Open Source Project
  * Copyright (C) 2014 The Linux Foundation. All rights reserved.
- * Copyright (C) 2015 The CyanogenMod Project
+ * Copyright (C) 2016 The CyanogenMod Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -47,23 +47,8 @@ char const*const RED_LED_FILE
 char const*const LCD_FILE
         = "/sys/class/leds/lcd-backlight/brightness";
 
-char const*const RED_DUTY_PCTS_FILE
-        = "/sys/class/leds/led:rgb_red/duty_pcts";
-
-char const*const RED_START_IDX_FILE
-        = "/sys/class/leds/led:rgb_red/start_idx";
-
-char const*const RED_PAUSE_LO_FILE
-        = "/sys/class/leds/led:rgb_red/pause_lo";
-
-char const*const RED_PAUSE_HI_FILE
-        = "/sys/class/leds/led:rgb_red/pause_hi";
-
-char const*const RED_RAMP_STEP_MS_FILE
-        = "/sys/class/leds/led:rgb_red/ramp_step_ms";
-
 char const*const RED_BLINK_FILE
-        = "/sys/class/leds/led:rgb_red/blink";
+        = "/sys/class/leds/led:rgb_red/rgbbreath";
 
 #define RAMP_SIZE 8
 static int BRIGHTNESS_RAMP[RAMP_SIZE]
@@ -153,26 +138,6 @@ set_light_backlight(struct light_device_t* dev,
     return err;
 }
 
-
-static char*
-get_scaled_duty_pcts(int brightness)
-{
-    char *buf = malloc(5 * RAMP_SIZE * sizeof(char));
-    char *pad = "";
-    int i = 0;
-
-    memset(buf, 0, 5 * RAMP_SIZE * sizeof(char));
-
-    for (i = 0; i < RAMP_SIZE; i++) {
-        char temp[5] = "";
-        snprintf(temp, sizeof(temp), "%s%d", pad, (BRIGHTNESS_RAMP[i] * brightness / 255));
-        strcat(buf, temp);
-        pad = ",";
-    }
-    ALOGV("%s: brightness=%d duty=%s", __func__, brightness, buf);
-    return buf;
-}
-
 static int
 set_speaker_light_locked(struct light_device_t* dev,
         struct light_state_t const* state)
@@ -219,17 +184,6 @@ set_speaker_light_locked(struct light_device_t* dev,
             pauseHi = 0;
         }
 
-        // red
-        write_int(RED_START_IDX_FILE, 0);
-        duty = get_scaled_duty_pcts(red);    
-        write_str(RED_DUTY_PCTS_FILE, duty);
-        write_int(RED_PAUSE_LO_FILE, offMS);
-        // The led driver is configured to ramp up then ramp
-        // down the lut. This effectively doubles the ramp duration.
-        write_int(RED_PAUSE_HI_FILE, pauseHi);
-        write_int(RED_RAMP_STEP_MS_FILE, stepDuration);
-        free(duty);
-
         // start the party
         write_int(RED_BLINK_FILE, red);