Fix Phobos dependencies on autodecoding

[a11e99z]

On Tuesday, 13 August 2019 at 09:15:30 UTC, Jonathan M Davis 
wrote:
> On Tuesday, August 13, 2019 2:52:58 AM MDT a11e99z via 
> Digitalmars-d wrote:
>> On Tuesday, 13 August 2019 at 07:51:23 UTC, Alexandru Ermicioi
>>
> we've wanted to get rid of it. Many of us actually thought that 
> autodecoding was a good idea at first, but we've all come to
>

thx for explanations.
probably I am on this stage too.
ok. I can live with .byRunes and .byBytes