Remove CHOOSER_UI intent filter.

Unused in practice as flow is still via framework in order to pick
up token.

Bug: 120572352
Test: atest SystemUiTests;  atest cts/tests/signature/intent-check/src/android/signature/cts/intent/IntentTest.java
Change-Id: I8497cdd7ddd4c4e1c905e9e19e24e92d4d54004d