internal/rosa: remove global handles

These no longer serve any purpose.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/rosa/toybox.go

@@ -2,6 +2,12 @@ package rosa
 
 import "hakurei.app/internal/pkg"
 
+var (
+	gzip = H("gzip")
+
+	toyboxEarly = H("toybox-early")
+)
+
 func (t Toolchain) newToybox(suffix, script string) (pkg.Artifact, string) {
 	const (
 		version  = "0.8.13"
@@ -52,10 +58,10 @@ mkdir -p /work/usr/bin
 ln -s ../../system/bin/env /work/usr/bin
 `,
 	},
-		Bash,
-		Gzip,
+		bash,
+		gzip,
 
-		KernelHeaders,
+		kernelHeaders,
 	), version
 }
 func init() {