remove contrib/sdb

removed the SDB databases in contrib/sdb as they hadn't been
maintained in some time, and were no longer able to link to named
without modification.  also cleaned up contrib/README, which still
referred to contrib subdirectores that were removed already, and
linked to an obsolete URL.
40 jobs from 428-remove-contrib-sdb in 16 minutes and 48 seconds (queued for 4 seconds)
merge request
Status Job ID Name Coverage
  Precheck
passed #173381
amd64 linux
🐞:sid:amd64

00:00:40

passed #173380
amd64 linux
misc:sid:amd64

00:00:16

 
  Build
passed #173392
amd64 linux
asan:sid:amd64

00:02:00

passed #173393
amd64 linux
clang:stretch:amd64

00:01:51

passed #173394
i386 linux
clang:stretch:i386

00:01:55

passed #173382
amd64 linux
docs:sid:amd64

00:01:10

passed #173391
amd64 linux
gcc:bionic:amd64

00:01:29

passed #173383
amd64 linux
gcc:centos6:amd64

00:01:45

passed #173384
amd64 linux
gcc:centos7:amd64

00:02:37

passed #173389
amd64 linux
gcc:fedora29:amd64

00:02:33

passed #173385
amd64 linux
gcc:jessie:amd64

00:00:59

passed #173387
amd64 linux
gcc:sid:amd64

00:01:56

passed #173388
i386 linux
gcc:sid:i386

00:02:20

passed #173386
amd64 linux
gcc:stretch:amd64

00:01:05

passed #173390
amd64 linux
gcc:xenial:amd64

00:01:06

passed #173395
amd64 linux
pkcs11:sid:amd64

00:01:48

 
  Test
passed #173414
amd64 linux
system:asan:sid:amd64

00:08:04

passed #173412
amd64 linux
system:gcc:bionic:amd64

00:06:22

passed #173396
amd64 linux
system:gcc:centos6:amd64

00:06:37

passed #173398
amd64 linux
system:gcc:centos7:amd64

00:06:57

passed #173408
amd64 linux
system:gcc:fedora29:amd64

00:06:12

passed #173400
amd64 linux
system:gcc:jessie:amd64

00:06:49

passed #173404
amd64 linux
system:gcc:sid:amd64

00:07:11

passed #173406
i386 linux
system:gcc:sid:i386

00:07:03

passed #173419
linux amd64
system:gcc:stretch:amd64

00:06:07

passed #173410
amd64 linux
system:gcc:xenial:amd64

00:06:44

passed #173417
amd64 linux
system:pkcs11:sid:amd64

00:07:10

passed #173415
amd64 linux
unit:asan:sid:amd64

00:01:02

passed #173416
amd64 linux
unit:clang:stretch:amd64

00:01:03

passed #173413
amd64 linux
unit:gcc:bionic:amd64

00:00:42

passed #173397
amd64 linux
unit:gcc:centos6:amd64

00:00:44

passed #173399
amd64 linux
unit:gcc:centos7:amd64

00:00:48

passed #173409
amd64 linux
unit:gcc:fedora29:amd64

00:00:58

passed #173401
amd64 linux
unit:gcc:jessie:amd64

00:00:29

passed #173405
amd64 linux
unit:gcc:sid:amd64

00:01:09

passed #173407
i386 linux
unit:gcc:sid:i386

00:00:42

passed #173403
amd64 linux
unit:gcc:stretch:amd64

00:00:52

passed #173411
amd64 linux
unit:gcc:xenial:amd64

00:00:50

passed #173418
amd64 linux
unit:pkcs11:sid:amd64

00:00:49

failed #173402
amd64 linux
system:gcc:stretch:amd64

00:07:11