Remove incidentd denial for apex_info_file

Underlying issue addressed by https://r.android.com/1849822 which
gives incidentd r_file_perms for apex_info_file:file.

Fix: 187015816
Test: atest incidentd_test; adb logcat | grep denied
Change-Id: I90b57a5f01c97c8488c10692208080557a863051

tracking_denials/incidentd.te

@@ -1,4 +1,2 @@
-# b/187015816
-dontaudit incidentd apex_info_file:file getattr;
 # b/190337296
 dontaudit incidentd debugfs_wakeup_sources:file read;