Revert "Remove sdk_version if platform_apis is set"

This reverts commit 160172d9.

Reason for revert: Should have removed platform_apis instead because
removing platform_apis doesn't change the module deps (done in aosp/2085943)

Test: CI
Bug: 219755537
Change-Id: I9657e569d942bf845c79352a042553c6fc6b0fd3