Update vendored dependencies

 * Bump all vendored dependencies to their current version
 * Remove unused pkgs from vendor

Author: Vladimir Smirnov

go.mod

@@ -8,7 +8,6 @@ require (
 	github.com/aclements/go-moremath v0.0.0-20190830160640-d16893ddf098 // indirect
 	github.com/ansel1/merry v1.5.1
 	github.com/bradfitz/gomemcache v0.0.0-20190913173617-a41fca850d0b
-	github.com/cosiner/argv v0.1.0 // indirect
 	github.com/dgryski/go-expirecache v0.0.0-20170314133854-743ef98b2adb
 	github.com/dgryski/go-onlinestats v0.0.0-20170612111826-1c7d19468768
 	github.com/dgryski/httputil v0.0.0-20160116060654-189c2918cd08
@@ -20,35 +19,23 @@ require (
 	github.com/facebookgo/httpdown v0.0.0-20180706035922-5979d39b15c2 // indirect
 	github.com/facebookgo/pidfile v0.0.0-20150612191647-f242e2999868
 	github.com/facebookgo/stats v0.0.0-20151006221625-1b76add642e4 // indirect
-	github.com/go-delve/delve v1.4.0 // indirect
 	github.com/go-graphite/protocol v0.4.2
-	github.com/golang/protobuf v1.3.5
+	github.com/golang/protobuf v1.4.0
 	github.com/gorilla/handlers v1.4.2
-	github.com/konsorten/go-windows-terminal-sequences v1.0.3 // indirect
-	github.com/lib/pq v1.3.0
+	github.com/lib/pq v1.4.0
 	github.com/lomik/og-rek v0.0.0-20170411191824-628eefeb8d80
 	github.com/lomik/zapwriter v0.0.0-20180906104450-2ec2b9a61680
 	github.com/maruel/natural v0.0.0-20180416170133-dbcb3e2e8cf1
-	github.com/mattn/go-colorable v0.1.6 // indirect
-	github.com/mattn/go-runewidth v0.0.9 // indirect
 	github.com/mjibson/go-dsp v0.0.0-20180508042940-11479a337f12
 	github.com/peterbourgon/g2g v0.0.0-20161124161852-0c2bab2b173d
-	github.com/peterh/liner v1.2.0 // indirect
 	github.com/philhofer/fwd v1.0.0 // indirect
 	github.com/satori/go.uuid v1.2.0
-	github.com/sirupsen/logrus v1.5.0 // indirect
-	github.com/spf13/cobra v1.0.0 // indirect
-	github.com/spf13/pflag v1.0.5 // indirect
-	github.com/spf13/viper v1.6.2
+	github.com/spf13/viper v1.6.3
 	github.com/stretchr/testify v1.5.1
 	github.com/tinylib/msgp v1.1.2
 	github.com/wangjohn/quickselect v0.0.0-20161129230411-ed8402a42d5f
-	go.starlark.net v0.0.0-20200330013621-be5394c419b6 // indirect
-	go.uber.org/zap v1.14.1
-	golang.org/x/arch v0.0.0-20200312215426-ff8b605520f4 // indirect
-	golang.org/x/crypto v0.0.0-20200429183012-4b2356b1ed79 // indirect
-	golang.org/x/sys v0.0.0-20200501145240-bc7a7d42d5c3 // indirect
+	go.uber.org/zap v1.15.0
 	gonum.org/v1/gonum v0.7.0
-	google.golang.org/grpc v1.28.0
+	google.golang.org/grpc v1.29.1
 	gopkg.in/yaml.v2 v2.2.8
 )