diff --git a/internal/pool/conn_state.go b/internal/pool/conn_state.go
index 8e334354..81840534 100644
--- a/internal/pool/conn_state.go
+++ b/internal/pool/conn_state.go
@@ -45,7 +45,6 @@ const (
 var (
 	validFromInUse              = []ConnState{StateInUse}
 	validFromCreatedOrIdle      = []ConnState{StateCreated, StateIdle}
-	validFromCreatedOrInUse     = []ConnState{StateCreated, StateInUse}
 	validFromCreatedInUseOrIdle = []ConnState{StateCreated, StateInUse, StateIdle}
 )