[sksg] Fix WASM build

Bug: skia:
Change-Id: I62c18765d13e2b64ec06fc913e91a3b492fb022f
Reviewed-on: https://skia-review.googlesource.com/130132
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Florin Malita <fmalita@chromium.org>
diff --git a/modules/sksg/BUILD.gn b/modules/sksg/BUILD.gn
index 2809cf1..5fb45bc 100644
--- a/modules/sksg/BUILD.gn
+++ b/modules/sksg/BUILD.gn
@@ -70,7 +70,7 @@
 }
 
 source_set("samples") {
-  if (skia_enable_sksg) {
+  if (skia_enable_sksg && target_cpu != "wasm") {  # TODO: clean up wasm test
     testonly = true
 
     configs += [