some cleanup

go/logic/migrator.go

@@ -76,8 +76,6 @@ type Migrator struct {
 	copyRowsQueue    chan tableWriteFunc
 	applyEventsQueue chan tableWriteFunc
 
-	handledChangelogStates map[string]bool
-	contextDumpFiles       []string
 	panicAbort chan error
 }
 
@@ -92,9 +90,7 @@ func NewMigrator() *Migrator {
 
 		copyRowsQueue:    make(chan tableWriteFunc),
 		applyEventsQueue: make(chan tableWriteFunc, applyEventsQueueBuffer),
-		handledChangelogStates: make(map[string]bool),
 
-		contextDumpFiles: []string{},
 		panicAbort: make(chan error),
 	}
 	return migrator