go: Clean up deps via 'go mod tidy'

go.mod

@@ -3,37 +3,19 @@ module github.com/DragonFlyBSD/mirrorselect
 go 1.15
 
 require (
-	github.com/bketelsen/crypt v0.0.3-0.20200106085610-5cbc8cc4026c // indirect
 	github.com/bytedance/sonic v1.8.6 // indirect
-	github.com/coreos/bbolt v1.3.2 // indirect
-	github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e // indirect
-	github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f // indirect
-	github.com/dgrijalva/jwt-go v3.2.0+incompatible // indirect
 	github.com/gin-gonic/gin v1.9.0
 	github.com/go-playground/validator/v10 v10.12.0 // indirect
 	github.com/goccy/go-json v0.10.2 // indirect
-	github.com/golang/protobuf v1.5.3 // indirect
-	github.com/gorilla/websocket v1.4.2 // indirect
-	github.com/grpc-ecosystem/go-grpc-middleware v1.0.0 // indirect
 	github.com/hashicorp/errwrap v1.1.0 // indirect
 	github.com/jlaffaye/ftp v0.1.0
-	github.com/jonboulle/clockwork v0.1.0 // indirect
 	github.com/klauspost/cpuid/v2 v2.2.4 // indirect
 	github.com/mattn/go-isatty v0.0.18 // indirect
 	github.com/oschwald/maxminddb-golang v1.10.0
-	github.com/pelletier/go-toml v1.9.5 // indirect
 	github.com/pelletier/go-toml/v2 v2.0.7 // indirect
-	github.com/prometheus/tsdb v0.7.1 // indirect
-	github.com/smartystreets/goconvey v1.6.4 // indirect
-	github.com/soheilhy/cmux v0.1.4 // indirect
 	github.com/spf13/afero v1.9.5 // indirect
 	github.com/spf13/viper v1.15.0
-	github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5 // indirect
-	github.com/ugorji/go v1.1.7 // indirect
 	github.com/ugorji/go/codec v1.2.11 // indirect
-	github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2 // indirect
-	go.etcd.io/bbolt v1.3.2 // indirect
 	golang.org/x/arch v0.3.0 // indirect
 	google.golang.org/protobuf v1.30.0 // indirect
-	gopkg.in/resty.v1 v1.12.0 // indirect
 )