Remove debug spew from test

Bug: tint:265
Change-Id: I9495c47fc1a4e70c6f6486c6357a41ddccd886c4
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/47625
Auto-Submit: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: James Price <jrprice@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>

src/reader/spirv/parser_impl_handle_test.cc

diff --git a/src/reader/spirv/parser_impl_handle_test.cc b/src/reader/spirv/parser_impl_handle_test.cc
index 196def8..89c23e6 100644
--- a/src/reader/spirv/parser_impl_handle_test.cc
+++ b/src/reader/spirv/parser_impl_handle_test.cc
@@ -5690,7 +5690,6 @@
            OpFunctionEnd
   )";
   auto p = parser(test::Assemble(assembly));
-  std::cout << assembly << std::endl;
   EXPECT_TRUE(p->BuildAndParseInternalModule()) << assembly;
   FunctionEmitter fe(p.get(), *spirv_function(p.get(), 100));
   EXPECT_TRUE(fe.EmitBody()) << p->error();