Drop TrustCor certificates am: 7f21eeb5f6 am: f66c1b62fa am: 287ab50b84

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/ca-certificates/+/22944915

Change-Id: I97f73df8ee4b827313d60c36699c008707f589ba
Signed-off-by: Automerger Merge Worker <[email protected]>