* Fixes grilles dropping a stack of 0 iron rods (#71501)
## About The Pull Request
Fixes a bug where grilles drop a stack of 0 iron rods on partial
destruction. They now drop one iron rod. Also removes a variable called
rods_broken which is useless.
## Why It's Good For The Game
The stack of 0 rods acts the same as a normal iron rod except its icon
is invisible, meaning it can be snuck past security, this is bad and
could be used for cheese. It also meant grilles dropped less iron rods
than it takes to build a grille, which makes no sense.
Fixes#71203
## Changelog
🆑
fix: fixes grilles dropping stack of 0 iron rods
/🆑
Co-authored-by: tattle <66640614+dragomagol@ users.noreply.github.com>
Co-authored-by: Fikou <23585223+Fikou@ users.noreply.github.com>
* Fixes grilles dropping a stack of 0 iron rods
Co-authored-by: supergrog2 <118997813+supergrog2@users.noreply.github.com>
Co-authored-by: tattle <66640614+dragomagol@ users.noreply.github.com>
Co-authored-by: Fikou <23585223+Fikou@ users.noreply.github.com>
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