Fix static code checks

Signed-off-by: twthorn <thomaswilliamthornton@gmail.com>

Author: twthorn

go/test/endtoend/vreplication/vreplication_test.go

@@ -55,11 +55,17 @@ var (
 	defaultReplicas        int
 	sourceKsOpts           = make(map[string]string)
 	targetKsOpts           = make(map[string]string)
+	defaultTargetKsOpts    = make(map[string]string)
 	httpClient             = throttlebase.SetupHTTPClient(time.Second)
 	sourceThrottlerAppName = throttlerapp.VStreamerName
 	targetThrottlerAppName = throttlerapp.VReplicationName
 )
 
+const (
+	defaultSourceKs = "product"
+	defaultTargetKs = "customer"
+)
+
 const (
 	// for some tests we keep an open transaction during a Switch writes and commit it afterwards, to reproduce https://github.com/vitessio/vitess/issues/9400
 	// we also then delete the extra row (if) added so that the row counts for the future count comparisons stay the same