This AOSP release didn't actually delete applypatch/edify/updater --
it relocated them, still Soong-converted, to bootable/deprecated-ota/.
Syncing external_update_binary alongside it produced a hard Soong
module-name collision (identical module names, several with matching
line numbers -- external_update_binary appears to be a near-verbatim
copy). Nothing currently wires either copy's modules into
PRODUCT_PACKAGES, so dropping the duplicate is a pure fix.