Remove the link to the nightly build

The nightly was broken so the download links were removed, this is to remove them from the slicing crash form.

.github/ISSUE_TEMPLATE/SlicingCrash.yaml

@@ -4,14 +4,7 @@ labels: ["Type: Bug", "Status: Triage", "Slicing Error :collision:"]
 body:
 - type: markdown
   attributes:
-    value: |
-       ### 💥 Slicing Crash Analysis Tool 💥
-       We are taking steps to analyze an increase in reported crashes more systematically. We'll need some help with that. 😇
-       Before filling out the report below, we want you to try a special Cura 5.7 Alpha.
-       This version of Cura has an updated slicing engine that will automatically send a report to the Cura Team for analysis. 
-       #### [You can find the downloads here](https://github.com/Ultimaker/Cura/discussions/18080) #### 
-       If you still encounter a crash you are still welcome to report the issue so we can use your model as a test case, you can find instructions on how to do that below.      
-       
+    value: |      
        ### Project File
        **⚠️ Before you continue, we need your project file to troubleshoot a slicing crash.**
        It contains the printer and settings we need for troubleshooting.