Remove logic for removing mongod log file(s)

... after successful physical restore

Internal mongod log files should stay in dbpath dir in case of
successful or failad restore. It'll be removed during new restore
procedure.

Author: boris-ilijic

pbm/restore/physical.go

@@ -220,16 +220,12 @@ func (r *PhysRestore) close(noerr, cleanup bool) {
 			r.log.Error("remove tmp config %s: %v", r.tmpConf.Name(), err)
 		}
 	}
-	// clean-up internal mongod log only if there is no error
+
+	// if there is no error clean-up internal restore files, internal log file(s) should stay
 	if noerr {
-		r.log.Debug("rm tmp logs")
-		err := os.Remove(path.Join(r.dbpath, internalMongodLog))
-		if err != nil {
-			r.log.Warning("remove tmp mongod logs %s: %v", path.Join(r.dbpath, internalMongodLog), err)
-		}
 		extMeta := filepath.Join(r.dbpath,
 			fmt.Sprintf(defs.ExternalRsMetaFile, util.MakeReverseRSMapFunc(r.rsMap)(r.nodeInfo.SetName)))
-		err = os.Remove(extMeta)
+		err := os.Remove(extMeta)
 		if err != nil && !errors.Is(err, os.ErrNotExist) {
 			r.log.Warning("remove external rs meta <%s>: %v", extMeta, err)
 		}