Remove old-style support for translated second architectures

Translated second architectures now go in NativeBridgeArch instead
of DeviceSecondaryArch.

Bug: 141242600
Test: m checkbuild
Change-Id: I568046330abc002d4eed582cb999b62a5eaba790
diff --git a/rust/compiler.go b/rust/compiler.go
index 87cf08b..4e01183 100644
--- a/rust/compiler.go
+++ b/rust/compiler.go
@@ -157,7 +157,7 @@
 	if ctx.toolchain().Is64Bit() && compiler.dir64 != "" {
 		dir = compiler.dir64
 	}
-	if (!ctx.Host() && !ctx.Arch().Native) || ctx.Target().NativeBridge == android.NativeBridgeEnabled {
+	if !ctx.Host() || ctx.Target().NativeBridge == android.NativeBridgeEnabled {
 		dir = filepath.Join(dir, ctx.Arch().ArchType.String())
 	}
 	return android.PathForModuleInstall(ctx, dir, compiler.subDir,