channeldb: initialize migrations logger

channeldb/migration_01_to_11/log.go

@@ -2,27 +2,13 @@ package migration_01_to_11
 
 import (
 	"github.com/btcsuite/btclog"
-	"github.com/lightningnetwork/lnd/build"
 )
 
-// log is a logger that is initialized with no output filters.  This
-// means the package will not perform any logging by default until the caller
-// requests it.
-var log btclog.Logger
-
-func init() {
-	UseLogger(build.NewSubLogger("CHDB", nil))
-}
-
-// DisableLog disables all library log output.  Logging output is disabled
-// by default until UseLogger is called.
-func DisableLog() {
-	UseLogger(btclog.Disabled)
-}
+// log is a logger that is initialized as disabled.  This means the package will
+// not perform any logging by default until a logger is set.
+var log = btclog.Disabled
 
 // UseLogger uses a specified Logger to output package logging info.
-// This should be used in preference to SetLogWriter if the caller is also
-// using btclog.
 func UseLogger(logger btclog.Logger) {
 	log = logger
 }