main/gnutls: remove workaround for TEXTRELS on x86

Not required anymore since the bug was fixed upstream.

See: https://gitlab.com/gnutls/gnutls/issues/818
7 jobs for !580 with gnutls in 6 minutes and 48 seconds (queued for 1 second)
detached
Status Name Job ID Coverage
  Lint
passed lint #10547
docker-alpine x86_64

00:00:21

 
  Build
passed build-aarch64 #10552
docker-alpine ci-build aarch64

00:03:15

passed build-armv7 #10553
docker-alpine ci-build armv7

00:04:04

passed build-ppc64le #10551
docker-alpine ci-build ppc64le

00:02:50

passed build-s390x #10550
docker-alpine ci-build s390x

00:06:25

passed build-x86 #10549
docker-alpine ci-build x86

00:03:17

passed build-x86_64 #10548
docker-alpine ci-build x86_64

00:03:11