Fix icon color in dark mode

Fixes: 133651524
Test: visual
Change-Id: Ic6f05dc491ad1d49b5cc81e294bf91271420d8e2

res/drawable/ic_eject_24dp.xml

@@ -17,7 +17,8 @@ Copyright (C) 2015 The Android Open Source Project
         android:width="24dp"
         android:height="24dp"
         android:viewportWidth="24.0"
-        android:viewportHeight="24.0">
+        android:viewportHeight="24.0"
+        android:tint="?android:attr/colorControlNormal">
     <path
         android:fillColor="#FF000000"
         android:pathData="M5 17h14v2H5zm7,-12L5.33 15h13.34z"/>

src/com/android/settings/deviceinfo/StorageVolumePreference.java

@@ -130,7 +130,6 @@ public class StorageVolumePreference extends Preference {
     public void onBindViewHolder(PreferenceViewHolder view) {
         final ImageView unmount = (ImageView) view.findViewById(R.id.unmount);
         if (unmount != null) {
-            unmount.setImageTintList(ColorStateList.valueOf(Color.parseColor("#8a000000")));
             unmount.setOnClickListener(mUnmountListener);
         }