Revert "Update ota_from_target_files"

This reverts commit e64c90dcc8f40de5b2f003856e44170cd9961917.
Revert "endif cause we are done"

This reverts commit b3ab7dbdc6627dcc142b8588d64cf525b6f5d8da.
Revert "Add otapackage support for backuptool"

This reverts commit ab882e11c48242e4f770878b0a289612f5a8f73f.
Revert "Kill the goldfish emulator crap with fire."

This reverts commit 91e767d83f80e8efb2d5dd9dbb14b4ad0784697f.