Revert "Use apexservice to get the list of apexes"

Revert submission 2685449-apexdata-dirs

Reason for revert: b/295345486 performance regression.

Reverted changes: /q/submissionid:2685449-apexdata-dirs

Bug: b/295345486
Test: n/a
Change-Id: I710a416398148b544635e32e6b8066fb0560171f