Budget Check Flag not used

[els-tmiller]

Version information
v0.34.2

Describe the bug
The budget_check_enabled terraform variable is not utilized. Furthermore, there doesn't seem to be conditional support within the update_lease_status function.

To Reproduce
Modify budget_check_enabled variable and no change is made to resources.

Expected behavior
If the feature is meant to exist, code needs to be added to support it. Otherwise the variable should be removed along with references to it within the documentation.

Additional context