remove indirects in go mod

go.mod

@@ -7,8 +7,6 @@ replace github.com/imdario/mergo => github.com/imdario/mergo v0.3.8
 require (
 	github.com/BurntSushi/toml v0.3.1
 	github.com/bitly/go-simplejson v0.5.0
-	github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869 // indirect
-	github.com/cpuguy83/go-md2man/v2 v2.0.0 // indirect
 	github.com/ef-ds/deque v1.0.4-0.20190904040645-54cb57c252a1
 	github.com/evanphx/json-patch/v5 v5.0.0
 	github.com/fsnotify/fsnotify v1.4.9
@@ -35,5 +33,4 @@ require (
 	golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9
 	golang.org/x/net v0.0.0-20200707034311-ab3426394381
 	golang.org/x/sync v0.0.0-20201207232520-09787c993a3a
-	google.golang.org/grpc v1.26.0 // indirect
 )