Revisit the null-enum-discriminant-debug-checks goal (#233)

* Remove the ask for a Design meeting for project goal

* Update null-enum-discriminant-debug-checks.md

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Co-authored-by: Niko Matsakis <niko@alum.mit.edu>

Author: 1c3t3a

src/2025h1/null-enum-discriminant-debug-checks.md

@@ -85,8 +85,6 @@ Particularly as next steps we would like to check for UB when:
 | Discussion and moral support | ![Team][], [lang], [opsem]    |           |
 | Implementation               | @1c3t3a, @vabr-g              |           |
 | Standard reviews             | ![Team][] [compiler], [opsem] | @saethlin |
-| Design meeting               | ![Team][] [lang], [opsem]     |           |
-| Lang-team experiment         | ![Team][] [lang]              |           |
 
 ### Definitions