[ES-116] Re-enable Hack Filesystem Unit Test

Get rid of the ifdef to disable the test and run it to make sure it passes.

ES-116 #done

Change-Id: Id90771fcc21cf0f760fd2626fa626e4865f63d41
diff --git a/garnet/public/lib/escher/test/fs/hack_filesystem_unittest.cc b/garnet/public/lib/escher/test/fs/hack_filesystem_unittest.cc
index 0264110..ea3ff95 100644
--- a/garnet/public/lib/escher/test/fs/hack_filesystem_unittest.cc
+++ b/garnet/public/lib/escher/test/fs/hack_filesystem_unittest.cc
@@ -9,12 +9,7 @@
 namespace {
 using namespace escher;
 
-// TODO(ES-116): figure out how to make files available to 'fx run-test'
-#ifdef __Fuchsia__
-TEST(HackFilesystem, DISABLED_Init) {
-#else
 TEST(HackFilesystem, Init) {
-#endif
   auto fs = HackFilesystem::New();
   bool success =
       fs->InitializeWithRealFiles({"shaders/model_renderer/main.vert"});