Remove ignore_errors

testdata/precondition/Taskfile.yml

@@ -2,20 +2,14 @@ version: '2'
 
 tasks:
   foo:
-    precondition:
+    preconditions:
       - test -f foo.txt
 
   impossible:
-    precondition:
+    preconditions:
       - sh: "[ 1 = 0 ]"
         msg: "1 != 0"
 
-  impossible_but_i_dont_care:
-    precondition:
-      - sh: "[ 2 = 1 ]"
-        msg: "2 != 1"
-        ignore_error: true
-
   depends_on_imposssible:
     deps:
       - impossible
@@ -27,8 +21,3 @@ tasks:
   depends_on_failure_of_impossible:
     deps:
       - impossible_but_i_dont_care
-
-  executes_failing_task_as_cmd_but_succeeds:
-    cmds:
-      - task: impossible_but_i_dont_care
-