Remove todo from PrivateSpaceMaitainer code

This change removes the TODO comment that was tracking to move over to
Biometric intent KeyguardManager.createConfirmDeviceCredentialIntent.
The hidden KeyguardManager.createConfirmDeviceCredentialIntent is being
used by various frameworks clients and is still avialable for use in settings.

Bug: 304796434
Test: Manual
Flag: EXEMPT removing todo
Change-Id: I5566d56e743e88afbcca0c4167c8a797e41b1a97

src/com/android/settings/privatespace/PrivateSpaceMaintainer.java

@@ -205,7 +205,6 @@ public class PrivateSpaceMaintainer {
             return mKeyguardManager.createConfirmDeviceCredentialIntent(
                     /* title= */ null,  /* description= */null, mUserHandle.getIdentifier());
         }
-        // TODO(b/304796434) Need to try changing this intent to use BiometricPrompt
         return mKeyguardManager.createConfirmDeviceCredentialIntent(
                 /* title= */ null, /* description= */ null);
     }