disable gpg in mutt

[Fourhundred Thecat]

 > On 2021-08-29 03:13, Kevin J. McCarthy wrote:
> On Sat, Aug 28, 2021 at 06:31:12AM +0200, Fourhundred Thecat wrote:
>>
>> $ /usr/bin/mutt -v | grep CRYPT_BACKEND
>> +CRYPT_BACKEND_CLASSIC_PGP  +CRYPT_BACKEND_CLASSIC_SMIME
>> -CRYPT_BACKEND_GPGME
>
> Note the "-" prefix in front of CRYPT_BACKEND_GPGME.  That means it's
> not included.  However classic pgp and smime support are compiled in.
> Those don't rely on the gpgme library.

OK, so how then can I display the encrypted message, instead of seeing:

   [-- PGP output follows (current time: 2021-08-29T06:47:20 CEST) --]
   [-- Error: could not create a PGP subprocess! --]

   [-- End of PGP output --]

   [-- Error: decryption failed --]

Why is mutt still trying to decrypt the message?

BTW, I have also removed the gpg.rc file from /etc/Muttrc.d/

thank you,