lint: remove dot import (go-common)

Spell out the package explicitly.
This commit is totally textual, and does not change any logic.

The swiss-army knife package may serve a kick-start in early
stage development. But as the codebase growing, we might want
to retire it gradually:

  For simple wrapping functions, just inline it on the call site.
  For larger pice of code, make it an independent package.

client/client.go

@@ -5,11 +5,11 @@ import (
 	"sync"
 
 	"github.com/tendermint/abci/types"
-	. "github.com/tendermint/go-common"
+	common "github.com/tendermint/go-common"
 )
 
 type Client interface {
-	Service
+	common.Service
 
 	SetResponseCallback(Callback)
 	Error() error