CLEANUP: Don't test future::cluster, because it will be removed

Author: HenrikBengtsson

DESCRIPTION

@@ -1,6 +1,6 @@
 Package: future.tests
 Title: Test Suite for 'Future API' Backends
-Version: 0.7.0-9002
+Version: 0.7.0-9003
 Authors@R: c(
   person("Henrik", "Bengtsson", role = c("aut", "cre", "cph"), email = "[email protected]"),
   person(family = "The R Consortium", comment = "Project was awared an Infrastructure Steering Committee (ISC) grant in 2017", role = "fnd"))

tests/test_plans.R

@@ -4,14 +4,13 @@ library(future)
 test_plans <- test_plans()
 print(test_plans)
 
-add_test_plan(plan(future:::constant))
 add_test_plan(plan(sequential))
 add_test_plan(plan(multisession, workers = 1L))
 add_test_plan(plan(multisession, workers = 2L))
 
 test_plans <- test_plans()
 print(test_plans)
-stopifnot(length(test_plans) == 4L)
+stopifnot(length(test_plans) == 3L)
 
 res <- along_test_plans({ 42L })
 print(res)