Remove unneeded toleration from catalog source pod

This toleration will try to go to any node, but does not handle
nodes that are not schedulable or pods that have been evicted from a
node.

Fixes #1677

Author: kramvan1

pkg/controller/registry/reconciler/reconciler.go

@@ -137,11 +137,6 @@ func Pod(source *v1alpha1.CatalogSource, name string, image string, labels map[s
 					ImagePullPolicy: pullPolicy,
 				},
 			},
-			Tolerations: []v1.Toleration{
-				{
-					Operator: v1.TolerationOpExists,
-				},
-			},
 			NodeSelector: map[string]string{
 				"beta.kubernetes.io/os": "linux",
 			},