Bug 1373525 - libfuzzer: Remove unused member function ScopedXPCOM::failed(). r=decoder

tools/fuzzing/libfuzzer/harness/LibFuzzerTestHarness.h:118:10: warning: unused member function 'failed' [-Wunused-member-function]

MozReview-Commit-ID: 7hsvvnnolcl

--HG--
extra : source : f80cd86fd1e116f59b23539292bb6d5dd6afcc7c
extra : intermediate-source : bb240b1bedb9c4503d34370f652b4a5dc9f68628

tools/fuzzing/libfuzzer/harness/LibFuzzerTestHarness.h

@@ -115,11 +115,6 @@ class ScopedXPCOM : public nsIDirectoryServiceProvider2
       printf("Finished running %s tests.\n", mTestName);
     }
 
-    bool failed()
-    {
-      return mServMgr == nullptr;
-    }
-
     already_AddRefed<nsIFile> GetProfileDirectory()
     {
       if (mProfD) {