Revert "credentials/alts: Properly release server InBytes buffer after the handshake is complete. (#3513)" (#3528)
Revert "credentials/alts: Properly release server InBytes buffer after the handshake is complete. (#3513)" (#3528)

This reverts commit 7c3fd13027648f7fe3bfc6e16289c65c09493e69.
grpc/grpc-go,stanley-cheung/grpc-go,menghanl/grpc-go,stanley-cheung/grpc-go,menghanl/grpc-go,grpc/grpc-go,dfawley/grpc-go,dfawley/grpc-go