Revert "light theme will now use light navigation bar (#722)" (#725)

* Revert "light theme will now use light navigation bar (#722)"

This reverts commit acd30fa.

Author: cmonfortep

app/src/main/res/values-v23/themes.xml

@@ -20,12 +20,10 @@
 
     <style name="AppTheme.Dark" parent="AppTheme.BaseDark">
         <item name="android:windowLightStatusBar">false</item>
-        <item name="android:navigationBarColor">@color/black</item>
     </style>
 
     <style name="AppTheme.Light" parent="AppTheme.BaseLight">
         <item name="android:windowLightStatusBar">true</item>
-        <item name="android:navigationBarColor">@color/white</item>
     </style>
 
 </resources>

app/src/main/res/values-v27/themes.xml

@@ -41,7 +41,6 @@
     <color name="midnight">#161616</color>
     <color name="almostBlackDark">#222222</color>
     <color name="almostBlack">#333333</color>
-    <color name="black">#000000</color>
 
     <color name="charcoalGrey">#383838</color>
     <color name="charcoalGreyTwoSemiTransparent">#d6333339</color>