Revert Chromium vulkan unit test build for now

Change-Id: I4b1939f68fd99b41a12654b28cc0b0f3bb5af64c
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/32389
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
diff --git a/BUILD.gn b/BUILD.gn
index 915825e..56c78ce 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -186,6 +186,5 @@
 
   data_deps = [
     "tests/GLESUnitTests:swiftshader_unittests",
-    "tests/VulkanUnitTests:swiftshader_vulkan_unittests",
   ]
 }