- don't hide layer-chooser in smartphone.css

- it's hidden in boot.js if iitc is booted with the iitcm android app

code/boot.js

@@ -474,7 +474,7 @@ window.setupQRLoadLib = function() {
 }
 
 window.setupLayerChooserApi = function() {
-  // hide layer chooser on mobile devices running desktop mode
+  // hide layer chooser if booted with the iitcm android app
   if (typeof android !== 'undefined' && android && android.setLayers) {
     $('.leaflet-control-layers').hide();
   }

mobile/smartphone.css

@@ -102,10 +102,6 @@ body {
   margin-left: 5px !important;
 }
 
-.leaflet-control-layers {
-  display: none;    /* hide layer control - it's now handled by an in-app option */
-}
-
 #geosearch {
   width: 100%;
 }