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-rw-r--r--eth/filters/filter_system.go1
1 files changed, 0 insertions, 1 deletions
diff --git a/eth/filters/filter_system.go b/eth/filters/filter_system.go
index 7abace1e6..ab0b7473e 100644
--- a/eth/filters/filter_system.go
+++ b/eth/filters/filter_system.go
@@ -74,7 +74,6 @@ type subscription struct {
// subscription which match the subscription criteria.
type EventSystem struct {
mux *event.TypeMux
- sub *event.TypeMuxSubscription
backend Backend
lightMode bool
lastHead *types.Header