Refactor: tools: Functionize options.require_scheduler in crm_resource

Note: Previously delete_cb() set options.require_scheduler to FALSE.
However, this was always overridden in main(), where
options.require_scheduler was set to TRUE because:

• delete_cb() set find_flags to a nonzero value
• cmd_delete required a --resource argument

Signed-off-by: Reid Wahl <nrwahl@protonmail.com>