Navigate with rerouting: remove GPX workflow (#1093)

Author: ZackAllen

src/Forms/Shared/Samples/NetworkAnalysis/NavigateRouteRerouting/GpxProvider.cs

@@ -43,7 +43,6 @@ Tap 'Navigate' to simulate traveling and to receive directions from a preset sta
 
 ## Offline data
 
-A GPX file provides a simulated path for the device to demonstrate routing while travelling. [Navigate a Route GPX Track](https://arcgisruntime.maps.arcgis.com/home/item.html?id=91e7e6be79cc4d2f8416eff867674c1e)
 A geodatabase contains a road network for San Diego. [San Diego Geodatabase](https://arcgisruntime.maps.arcgis.com/home/item.html?id=567e14f3420d40c5a206e5c0284cf8fc)
 
 ## About the data
@@ -56,4 +55,4 @@ The route tracker will start a rerouting calculation automatically as necessary
 
 ## Tags
 
-directions, maneuver, navigation, route, turn-by-turn, voice
+directions, maneuver, navigation, route, turn-by-turn, voice

src/Forms/Shared/Samples/NetworkAnalysis/NavigateRouteRerouting/NavigateRouteRerouting.xaml.cs

@@ -15,7 +15,6 @@
         "voice"
     ],
     "offline_data": [
-        "91e7e6be79cc4d2f8416eff867674c1e",
         "567e14f3420d40c5a206e5c0284cf8fc"
     ],
     "redirect_from": [
@@ -35,7 +34,6 @@
         "VoiceGuidance"
     ],
     "snippets": [
-        "GpxProvider.cs",
         "NavigateRouteRerouting.xaml",
         "NavigateRouteRerouting.xaml.cs"
     ],