Remove excessive inclusion of isc/refcount.h from various header files

14 jobs for 344-add-stdatomic-shim in 7 minutes and 43 seconds (queued for 4 seconds)
Status Job ID Name Coverage
  Precheck
passed #55477
linux docker amd64
precheck:debian:sid:amd64

00:00:18

 
  Build
passed #55478
linux docker amd64
build:centos:centos6:amd64

00:02:17

passed #55479
linux docker amd64
build:centos:centos7:amd64

00:02:24

passed #55480
linux docker amd64
build:debian:sid:amd64

00:03:02

passed #55481
linux docker i386
build:debian:sid:i386

00:02:52

 
  Test
passed #55490
linux docker amd64
install:debian:sid:amd64

00:01:24

passed #55486
linux docker amd64
systemtest:centos:centos6:amd64

00:04:04

passed #55487
linux docker amd64
systemtest:centos:centos7:amd64

00:04:14

passed #55488
linux docker amd64
systemtest:debian:sid:amd64

00:04:11

passed #55489
linux docker i386
systemtest:debian:sid:i386

00:04:19

passed #55482
linux docker amd64
unittest:centos:centos6:amd64

00:00:56

passed #55483
linux docker amd64
unittest:centos:centos7:amd64

00:00:59

passed #55484
linux docker amd64
unittest:debian:sid:amd64

00:00:54

passed #55485
linux docker i386
unittest:debian:sid:i386

00:00:47