Remove flakey test (#1223)

## Description

There's enough other tests in the codebase that check the functionality of getting multiple folders that it should be fine without this one.

## Type of change

<!--- Please check the type of change your PR introduces: --->
- [ ] 🌻 Feature
- [x] 🐛 Bugfix
- [ ] 🗺️ Documentation
- [x] 🤖 Test
- [ ] 💻 CI/Deployment
- [ ] 🐹 Trivial/Minor

## Issue(s)

* closes #1222 

## Test Plan

<!-- How will this be tested prior to merging.-->
- [ ] 💪 Manual
- [x] ⚡ Unit test
- [ ] 💚 E2E

src/internal/connector/graph_connector_test.go

@@ -333,16 +333,10 @@ func (suite *GraphConnectorIntegrationSuite) TestMailFetch() {
 		scope       selectors.ExchangeScope
 		folderNames map[string]struct{}
 	}{
-		{
-			name:  "Mail Iterative Check",
-			scope: sel.MailFolders([]string{userID}, selectors.Any())[0],
-			folderNames: map[string]struct{}{
-				exchange.DefaultMailFolder: {},
-				"Sent Items":               {},
-			},
-		},
 		{
 			name: "Folder Iterative Check Mail",
+			// Only select specific folders so the test doesn't flake when the CI
+			// cleanup task deletes things.
 			scope: sel.MailFolders(
 				[]string{userID},
 				[]string{exchange.DefaultMailFolder},