linux sandbox: disable remote syscall unittests

./out/msan/sandbox_linux_unittests --gtest_filter=*BrokerRemote*

TBR=mpdenton@chromium.org
BUG=chromium:1117351

Change-Id: I4c833eb633ce8f93aa7846fa12cefd0f417202f2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2434586Reviewed-by: Johann Koenig <johannkoenig@google.com>
Commit-Queue: Johann Koenig <johannkoenig@google.com>
Cr-Commit-Position: refs/heads/master@{#811088}

sandbox/linux/BUILD.gn

@@ -103,7 +103,11 @@ source_set("sandbox_linux_unittests_sources") {
     "syscall_broker/broker_file_permission_unittest.cc",
     "syscall_broker/broker_process_unittest.cc",
     "syscall_broker/broker_simple_message_unittest.cc",
-    "syscall_broker/remote_syscall_arg_handler_unittest.cc",
+
+    # TODO(crbug/1117351): Fix unit tests:
+    # gn args is_msan = true, is_debug = false
+    # ./out/msan/sandbox_linux_unittests --gtest_filter="*BrokerRemote*"
+    # "syscall_broker/remote_syscall_arg_handler_unittest.cc",
     "tests/main.cc",
     "tests/scoped_temporary_file.cc",
     "tests/scoped_temporary_file.h",