internal/rosa: remove global handles

These no longer serve any purpose.

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

internal/rosa/ninja.go

@@ -19,11 +19,11 @@ func init() {
 		ID: 2089,
 	}
 	native.MustRegister(meta.Name, func(t Toolchain) (*Metadata, pkg.Artifact) {
-		_, python := t.Load(Python)
-		_, bash := t.Load(Bash)
+		_, _python := t.Load(Python)
+		_, _bash := t.Load(bash)
 		return &meta, t.New(meta.Name+"-"+version, 0, []pkg.Artifact{
-			python,
-			bash,
+			_python,
+			_bash,
 		}, nil, nil, `
 cd "$(mktemp -d)"
 python3 /usr/src/ninja/configure.py \