[MM-36444] Manage config deprecations for 6.0 (#18035)

* removing deprecated stuff

* removing deprecations and marking others for deprecations

* removing some of the configs

* partially remove ExperimentalChannelOrganization

* fixing merge issues

* moving default permissions to defaultroles function

* removing experimentaltownsquare

* removing old tests and remove legacysidebar config

* fixing test

* removing log

* removing unused variables

* MM-36444: Fix for renamed functions.

* MM-36444: go mod tidy and go mod vendor.

* MM-36444: Vendored go modules.

* MM-36444: Removes UseExperimentalGossip config field from model.

* Fix vendors

* fixing test

Co-authored-by: Benjamin Cooke <benjamincooke@Benjamins-MacBook-Pro.local>
Co-authored-by: Mattermod <mattermod@users.noreply.github.com>
Co-authored-by: Martin Kraft <martin@upspin.org>
Co-authored-by: Claudio Costa <cstcld91@gmail.com>

api4/reaction_test.go

@@ -165,34 +165,6 @@ func TestSaveReaction(t *testing.T) {
 		th.AddPermissionToRole(model.PermissionAddReaction.Id, model.ChannelUserRoleId)
 	})
 
-	t.Run("unable-to-react-in-read-only-town-square", func(t *testing.T) {
-		th.LoginBasic()
-
-		channel, appErr := th.App.GetChannelByName("town-square", th.BasicTeam.Id, true)
-		assert.Nil(t, appErr)
-		post := th.CreatePostWithClient(th.Client, channel)
-
-		th.App.Srv().SetLicense(model.NewTestLicense())
-		th.App.UpdateConfig(func(cfg *model.Config) { *cfg.TeamSettings.ExperimentalTownSquareIsReadOnly = true })
-
-		reaction := &model.Reaction{
-			UserId:    userId,
-			PostId:    post.Id,
-			EmojiName: "smile",
-		}
-
-		_, resp, err := client.SaveReaction(reaction)
-		require.Error(t, err)
-		CheckForbiddenStatus(t, resp)
-
-		reactions, appErr := th.App.GetReactionsForPost(post.Id)
-		require.Nil(t, appErr)
-		require.Equal(t, 0, len(reactions), "should have not created a reaction")
-
-		th.App.Srv().RemoveLicense()
-		th.App.UpdateConfig(func(cfg *model.Config) { *cfg.TeamSettings.ExperimentalTownSquareIsReadOnly = false })
-	})
-
 	t.Run("unable-to-react-in-an-archived-channel", func(t *testing.T) {
 		th.LoginBasic()
 
@@ -501,42 +473,6 @@ func TestDeleteReaction(t *testing.T) {
 		th.AddPermissionToRole(model.PermissionRemoveOthersReactions.Id, model.SystemAdminRoleId)
 	})
 
-	t.Run("unable-to-delete-reactions-in-read-only-town-square", func(t *testing.T) {
-		th.LoginBasic()
-
-		channel, appErr := th.App.GetChannelByName("town-square", th.BasicTeam.Id, true)
-		assert.Nil(t, appErr)
-		post := th.CreatePostWithClient(th.Client, channel)
-
-		th.App.Srv().SetLicense(model.NewTestLicense())
-
-		reaction := &model.Reaction{
-			UserId:    userId,
-			PostId:    post.Id,
-			EmojiName: "smile",
-		}
-
-		r1, _, err := client.SaveReaction(reaction)
-		require.NoError(t, err)
-
-		reactions, appErr := th.App.GetReactionsForPost(postId)
-		require.Nil(t, appErr)
-		require.Equal(t, 1, len(reactions), "should have created a reaction")
-
-		th.App.UpdateConfig(func(cfg *model.Config) { *cfg.TeamSettings.ExperimentalTownSquareIsReadOnly = true })
-
-		resp, err := th.SystemAdminClient.DeleteReaction(r1)
-		require.Error(t, err)
-		CheckForbiddenStatus(t, resp)
-
-		reactions, appErr = th.App.GetReactionsForPost(postId)
-		require.Nil(t, appErr)
-		require.Equal(t, 1, len(reactions), "should have not deleted a reaction")
-
-		th.App.Srv().RemoveLicense()
-		th.App.UpdateConfig(func(cfg *model.Config) { *cfg.TeamSettings.ExperimentalTownSquareIsReadOnly = false })
-	})
-
 	t.Run("unable-to-delete-reactions-in-an-archived-channel", func(t *testing.T) {
 		th.LoginBasic()