workflows: remove unnecessary handling of exception in timeout_parse (#83418)

tests/workflow/test_jump.py

@@ -272,6 +272,13 @@ def test_timeout(pub):
     jump.status = 'st2'
     workflow.store()
 
+    # test timeout_parse
+    assert jump.timeout_parse(None) is None  # no value, kept as is
+    assert jump.timeout_parse('') == ''  # no value, kept as is
+    assert jump.timeout_parse('20 minutes') == 20 * 60
+    assert jump.timeout_parse('20') == 0  # not unit
+    assert jump.timeout_parse('error') == 0  # not a valid value
+
     formdef = FormDef()
     formdef.name = 'baz'
     formdef.fields = []

wcs/wf/jump.py

@@ -341,10 +341,7 @@ class JumpWorkflowStatusItem(WorkflowStatusJumpItem):
             return value
         if self.get_expression(value)['type'] != 'text':
             return value
-        try:
-            return humanduration2seconds(value)
-        except ValueError:
-            return None
+        return humanduration2seconds(value)
 
     def get_computed_strings(self):
         yield from super().get_computed_strings()