[s] Update HolodeckControl.dm

[XFirebirdX]

What Does This PR Do

This PR removes the ability to duplicate carpet tiles & grass tiles from the holodeck, as it makes absolutely no sense why it should duplicate it.

Why It's Good For The Game

You can't duplicate infinite amounts of carpet tiles & grass tiles anymore.

Testing

• Spawned in, visited the holodeck.
• Selected the Theatre & Picnic area
• Used a crowbar on carpet tiles & grass tiles.
• Carpet tiles & grass tiles drops. (Flabbergasted)
• Removed 2 lines of code responsible for spawning the item if removed via a crowbar.
• Visited the holodeck again, to see the tiles disappear into thin air.
• Profit.

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Declaration

• I confirm that I either do not require pre-approval for this PR, or I have obtained such approval and have included a screenshot to demonstrate this below.

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Changelog

🆑
fix: Fixed being able to duplicate "grass & carpet tiles" in the Holodeck.
/:cl: