[automerger skipped] Revert "Load env variables before c.config()" am:...

[automerger skipped] Revert "Load env variables before c.config()" am: 4e88859a am: 9ee45ad0 am: fb58d3aa -s ours am: a1457d51 -s ours

am skip reason: Merged-In I416e8da75f84aa2b53995f525cf50501488dc972 with SHA-1 51c40913 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/build/soong/+/15741350

Change-Id: I622d8a0bacf94d53e8fb66041166d2cf96ffb4df