Remove native auth from msal test app

CODEOWNERS

@@ -15,7 +15,6 @@ msal/src/main/java/com/microsoft/identity/nativeauth/ @AzureAD/NativeAuthTeam
 msal/src/test/java/com/microsoft/identity/nativeauth/ @AzureAD/NativeAuthTeam
 msal/src/test/java/com/microsoft/identity/client/e2e/tests/network/nativeauth/ @AzureAD/NativeAuthTeam
 msal/src/androidTest/java/com/microsoft/identity/nativeauth/ @AzureAD/NativeAuthTeam
-msal/testapps/testapp/src/main/java/com/microsoft/identity/client/testapp/nativeauth @AzureAD/NativeAuthTeam
 
 # If you are interested in reviewing or getting notified of changes in a particular area
 # Please add your alias against that specific path below

testapps/testapp/src/main/java/com/microsoft/identity/client/testapp/Constants.java

@@ -129,12 +129,4 @@ public enum AuthScheme {
         BEARER,
         POP
     }
-
-    /**
-     * Constants used in native auth flows.
-     */
-    public static final String STATE = "state";
-    public static final String CODE_LENGTH = "code_length";
-    public static final String SENT_TO = "sent_to";
-    public static final String CHANNEL = "channel";
 }

testapps/testapp/src/main/java/com/microsoft/identity/client/testapp/MainActivity.java

@@ -225,11 +225,6 @@ public boolean onNavigationItemSelected(final MenuItem item) {
                 return false;
             }
             fragment = new AcquireTokenFragment();
-        } else if (menuItemId == R.id.nav_native) {
-            if (getCurrentFragment() instanceof NativeAuthFragment) {
-                return false;
-            }
-            fragment = new NativeAuthFragment();
         } else if (menuItemId == R.id.nav_result) {
             if (getCurrentFragment() instanceof ResultFragment) {
                 return false;