vendor: un-pin github.com/coreos/systemd

It's not used as a direct dependency, and not vendored.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

vendor.mod

@@ -169,7 +169,6 @@ require (
 replace (
 	github.com/armon/go-metrics => github.com/armon/go-metrics v0.0.0-20150106224455-eb0af217e5e9
 	github.com/armon/go-radix => github.com/armon/go-radix v0.0.0-20150105235045-e39d623f12e8
-	github.com/coreos/go-systemd => github.com/coreos/go-systemd v0.0.0-20180511133405-39ca1b05acc7
 	github.com/hashicorp/go-msgpack => github.com/hashicorp/go-msgpack v0.0.0-20140221154404-71c2886f5a67
 	github.com/hashicorp/go-multierror => github.com/hashicorp/go-multierror v1.0.0
 	github.com/hashicorp/serf => github.com/hashicorp/serf v0.7.1-0.20160317193612-598c54895cc5

vendor.sum

@@ -315,7 +315,9 @@ github.com/coreos/go-iptables v0.6.0/go.mod h1:Qe8Bv2Xik5FyTXwgIbLAnv2sWSBmvWdFE
 github.com/coreos/go-oidc v2.1.0+incompatible/go.mod h1:CgnwVTmzoESiwO9qyAFEMiHoZ1nMCKZlZ9V6mm3/LKc=
 github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-semver v0.3.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
+github.com/coreos/go-systemd v0.0.0-20161114122254-48702e0da86b/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/coreos/go-systemd v0.0.0-20180511133405-39ca1b05acc7/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
+github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/coreos/go-systemd/v22 v22.0.0/go.mod h1:xO0FLkIi5MaZafQlIrOotqXZ90ih+1atmu1JpKERPPk=
 github.com/coreos/go-systemd/v22 v22.1.0/go.mod h1:xO0FLkIi5MaZafQlIrOotqXZ90ih+1atmu1JpKERPPk=
 github.com/coreos/go-systemd/v22 v22.3.2 h1:D9/bQk5vlXQFZ6Kwuu6zaiXJ9oTPe68++AzAJc1DzSI=

vendor/modules.txt

@@ -1118,7 +1118,6 @@ gotest.tools/v3/skip
 ## explicit
 # github.com/armon/go-metrics => github.com/armon/go-metrics v0.0.0-20150106224455-eb0af217e5e9
 # github.com/armon/go-radix => github.com/armon/go-radix v0.0.0-20150105235045-e39d623f12e8
-# github.com/coreos/go-systemd => github.com/coreos/go-systemd v0.0.0-20180511133405-39ca1b05acc7
 # github.com/hashicorp/go-msgpack => github.com/hashicorp/go-msgpack v0.0.0-20140221154404-71c2886f5a67
 # github.com/hashicorp/go-multierror => github.com/hashicorp/go-multierror v1.0.0
 # github.com/hashicorp/serf => github.com/hashicorp/serf v0.7.1-0.20160317193612-598c54895cc5