Speed up builds by disabling decompilation and recompilation in MDG

[raoulvdberge]

Describe your enhancement

https://github.com/neoforged/ModDevGradle?tab=readme-ov-file#disabling-decompilation-and-recompilation

[raoulvdberge]

Will be fixed by #219
"ModDevGradle 2.0.136 now disables decompilation in CI automatically, so you can remove any code like disableRecompilation = System.getenv("CI") == "true" given it's now the default!"