chore(example): remove unused resources

example/src/main/res/values/colors.xml

@@ -1,10 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <color name="primary_orange">#FA5B30</color>
-    <color name="secondary_orange">#FFB39E</color>
     <color name="light_blue">#D9E1EC</color>
-    <color name="dark_blue">#414F6E</color>
-    <color name="black">#0B0F17</color>
     <color name="white">#FFFFFF</color>
     <color name="transparent_white">#66FFFFFF</color>
 </resources>

example/src/main/res/values/strings.xml

@@ -10,7 +10,6 @@
     <string name="stop">Stop</string>
     <string name="endpoint">Endpoint</string>
     <string name="error">Error</string>
-    <string name="authentication_failed">Authentication failed</string>
     <string name="disconnection">You have been disconnected</string>
 
     <!-- Strings used for preferences -->