[MM-48542] Removing integration limits (#21282)

* Removing integration limits

* Remove freemium limit test

* Remove test assertion regarding cloud limits

* Remove GetIntegrationsUsage

* Removing integrations usage notifications

* This shouldn't be removed

* Removing client call and websocket event

* Remove old translations

Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

api4/usage_test.go

@@ -91,28 +91,3 @@ func TestGetTeamsUsage(t *testing.T) {
 		assert.Equal(t, int64(3), usage.Active)
 	})
 }
-
-func TestGetIntegrationsUsage(t *testing.T) {
-	t.Run("unauthenticated users can not access", func(t *testing.T) {
-		th := Setup(t)
-		defer th.TearDown()
-
-		th.Client.Logout()
-
-		usage, r, err := th.Client.GetIntegrationsUsage()
-		assert.Error(t, err)
-		assert.Nil(t, usage)
-		assert.Equal(t, http.StatusUnauthorized, r.StatusCode)
-	})
-
-	t.Run("good request returns response", func(t *testing.T) {
-		th := Setup(t).InitBasic()
-		defer th.TearDown()
-
-		usage, r, err := th.Client.GetIntegrationsUsage()
-		assert.NoError(t, err)
-		assert.Equal(t, http.StatusOK, r.StatusCode)
-		assert.NotNil(t, usage)
-		assert.Equal(t, 0, usage.Enabled)
-	})
-}