Bug 1850987 - Stop sending RecordNotFoundException to crash reporter

This is not an actionable error and if we need to know more details
about how often this happens, we should add telemetry instead in a more
meaningful way that would trigger some response.

Right now, no one really seems to look at this data and we are using up
our Sentry event quota unnecessarily.

(cherry picked from commit f51c875242a842b0359bc05f66f0e07ed486bb74)

components/feature/push/src/main/java/mozilla/components/feature/push/AutoPushFeature.kt

@@ -15,7 +15,6 @@ import kotlinx.coroutines.launch
 import kotlinx.coroutines.plus
 import mozilla.appservices.push.BridgeType
 import mozilla.appservices.push.PushApiException
-import mozilla.appservices.push.PushApiException.RecordNotFoundException
 import mozilla.appservices.push.PushApiException.UaidNotRecognizedException
 import mozilla.appservices.push.PushConfiguration
 import mozilla.appservices.push.PushHttpProtocol
@@ -304,7 +303,6 @@ class AutoPushFeature(
 
     private fun exceptionHandler(onError: (PushError) -> Unit) = CoroutineExceptionHandler { _, e ->
         when (e) {
-            is RecordNotFoundException,
             is UaidNotRecognizedException,
             -> onError(PushError.Rust(e, e.message.orEmpty()))
             else -> logger.warn("Internal error occurred in AutoPushFeature.", e)