treewide: remove unnecessary types and conversions

Change-Id: Ifcaa9ceeec243b3646c9b6e0a6fad7ef2db8fd90
Reviewed-on: https://review.monogon.dev/c/monogon/+/2954
Reviewed-by: Lorenz Brun <lorenz@monogon.tech>
Tested-by: Jenkins CI
diff --git a/metropolis/pkg/fsquota/fsquota.go b/metropolis/pkg/fsquota/fsquota.go
index 0d49592..1cdcd54 100644
--- a/metropolis/pkg/fsquota/fsquota.go
+++ b/metropolis/pkg/fsquota/fsquota.go
@@ -56,7 +56,7 @@
 		return err
 	}
 
-	var lastID uint32 = attrs.ProjectID
+	var lastID = attrs.ProjectID
 	if lastID == 0 {
 		// No project/quota exists for this directory, assign a new project
 		// quota.