Revert of [test] add --no-harness option to debugger tests.

test/debugger/testcfg.py

Index: test/debugger/testcfg.py
diff --git a/test/debugger/testcfg.py b/test/debugger/testcfg.py
index bfb60f109c3fc84839fa55d8fa4d988e1a633637..a07acbce5bd5f05dc4d20b8b8f6c3b520bffc119 100644
--- a/test/debugger/testcfg.py
+++ b/test/debugger/testcfg.py
@@ -51,8 +51,7 @@
         break
 
     files = []
-    if not context.no_harness and not NO_HARNESS_PATTERN.search(source):
-      files.append(os.path.normpath(os.path.join(self.root, "..", "mjsunit", "mjsunit.js")))
+    files.append(os.path.normpath(os.path.join(self.root, "..", "mjsunit", "mjsunit.js")))
     files.append(os.path.join(self.root, "test-api.js"))
     files.extend([ os.path.normpath(os.path.join(self.root, '..', '..', f))
                   for f in files_list ])