Remove unnecessary param

Signed-off-by: Rohit Nayak <rohit@planetscale.com>

Author: rohit-nayak-ps

go/vt/vttablet/tabletmanager/vdiff/controller.go

@@ -83,7 +83,7 @@ type controller struct {
 	TableDiffPhaseTimings *stats.Timings
 }
 
-func newController(ctx context.Context, row sqltypes.RowNamedValues, dbClientFactory func() binlogplayer.DBClient,
+func newController(row sqltypes.RowNamedValues, dbClientFactory func() binlogplayer.DBClient,
 	ts *topo.Server, vde *Engine, options *tabletmanagerdata.VDiffOptions) (*controller, error) {
 
 	log.Infof("VDiff controller initializing for %+v", row)

go/vt/vttablet/tabletmanager/vdiff/engine.go

@@ -212,7 +212,7 @@ func (vde *Engine) retry(ctx context.Context, err error) {
 // addController creates a new controller using the given vdiff record and adds it to the engine.
 // You must already have the main engine mutex (mu) locked before calling this.
 func (vde *Engine) addController(row sqltypes.RowNamedValues, options *tabletmanagerdata.VDiffOptions) error {
-	ct, err := newController(vde.ctx, row, vde.dbClientFactoryDba, vde.ts, vde, options)
+	ct, err := newController(row, vde.dbClientFactoryDba, vde.ts, vde, options)
 	if err != nil {
 		return fmt.Errorf("controller could not be initialized for stream %+v on tablet %v",
 			row, vde.thisTablet.Alias)

go/vt/vttablet/tabletmanager/vdiff/framework_test.go

@@ -693,7 +693,7 @@ func (tvde *testVDiffEnv) createController(t *testing.T, id int) *controller {
 
 func (tvde *testVDiffEnv) newController(t *testing.T, controllerQR *sqltypes.Result) *controller {
 	ctx := context.Background()
-	ct, err := newController(ctx, controllerQR.Named().Row(), tvde.dbClientFactory, tstenv.TopoServ, tvde.vde, tvde.opts)
+	ct, err := newController(controllerQR.Named().Row(), tvde.dbClientFactory, tstenv.TopoServ, tvde.vde, tvde.opts)
 	require.NoError(t, err)
 	ctx2, cancel := context.WithCancel(ctx)
 	ct.cancel = cancel