Make the "inline" system test more lightweight

Each zone used in the "inline" system test contains a few dozen records.
Over a dozen of these zones are used in the test.  Most records present
in these zones are not subsequently used in the test itself, but all of
them need to be signed by the named instances launched by the test,
which puts quite a bit of strain on lower-end machines, leading to
intermittent failures of the "inline" system test.  Remove all redundant
records from the zones used in the "inline" system test in order to
stabilize it.
25 jobs for 285-make-the-inline-system-test-more-lightweight in 10 minutes and 29 seconds (queued for 4 seconds)
Status Job ID Name Coverage
  Precheck
passed precheck:debian:sid:amd64 #36346
amd64 docker linux

00:00:11

 
  Build
passed build:centos:centos6:amd64 #36347
amd64 docker linux

00:02:28

passed build:centos:centos7:amd64 #36348
amd64 docker linux

00:02:38

passed build:clang:debian:stretch:amd64 #36349
docker linux amd64

00:01:45

passed build:clang:debian:stretch:i386 #36353
i386 docker linux

00:04:16

passed build:debian:jessie:amd64 #36350
amd64 docker linux

00:04:18

passed build:debian:sid:amd64 #36352
amd64 docker linux

00:02:18

passed build:debian:sid:i386 #36354
i386 docker linux

00:02:23

passed build:debian:stretch:amd64 #36351
amd64 docker linux

00:02:20

passed pkcs11:build:debian:sid:amd64 #36355
amd64 docker linux

00:02:21

 
  Test
passed pkcs11:systemtest:debian:sid:amd64 #36370
amd64 docker linux

00:04:54

passed pkcs11:unittest:debian:sid:amd64 #36369
amd64 docker linux

00:00:52

passed systemtest:centos:centos6:amd64 #36363
amd64 docker linux

00:05:44

passed systemtest:centos:centos7:amd64 #36364
amd64 docker linux

00:04:48

passed systemtest:debian:jessie:amd64 #36365
amd64 docker linux

00:05:54

passed systemtest:debian:sid:amd64 #36367
amd64 docker linux

00:05:51

passed systemtest:debian:sid:i386 #36368
i386 docker linux

00:05:59

passed systemtest:debian:stretch:amd64 #36366
amd64 docker linux

00:04:53

passed unittest:centos:centos6:amd64 #36356
amd64 docker linux

00:00:58

passed unittest:centos:centos7:amd64 #36357
amd64 docker linux

00:00:58

passed unittest:clang:debian:stretch:amd64 #36361
amd64 docker linux

00:00:51

passed unittest:debian:jessie:amd64 #36358
amd64 docker linux

00:00:57

passed unittest:debian:sid:amd64 #36360
amd64 docker linux

00:00:52

passed unittest:debian:sid:i386 #36362
i386 docker linux

00:00:50

passed unittest:debian:stretch:amd64 #36359
amd64 docker linux

00:00:51