Remove preview image integration

platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/MapView.java

@@ -108,8 +108,7 @@ public MapView(@NonNull Context context, @Nullable MapboxMapOptions options) {
 
   private void initialise(@NonNull final Context context, @NonNull final MapboxMapOptions options) {
     if (isInEditMode()) {
-      // in IDE, show preview map
-      LayoutInflater.from(context).inflate(R.layout.mapbox_mapview_preview, this);
+      // in IDE layout editor, just return
       return;
     }
     mapboxMapOptions = options;

platform/android/MapboxGLAndroidSDK/src/main/res/values/colors.xml

@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <color name="mapbox_gray">#7D7F80</color>
-    <color name="mapbox_gray_light">#EEEEEE</color>
     <color name="mapbox_blue">#1E8CAB</color>
 </resources>