Backed out 4 changesets (bug 1311935) for causing assertion crash by developer's request

Backed out changeset 27e624cd9479 (bug 1311935)
Backed out changeset 4c0381ab0990 (bug 1311935)
Backed out changeset 73587838ef16 (bug 1311935)
Backed out changeset a5a6c0f79733 (bug 1311935)

toolkit/components/url-classifier/VariableLengthPrefixSet.cpp

@@ -188,7 +188,6 @@ VariableLengthPrefixSet::Matches(const nsACString& aFullHash, uint32_t* aLength)
   for (auto iter = mVLPrefixSet.ConstIter(); !iter.Done(); iter.Next()) {
     if (BinarySearch(aFullHash, *iter.Data(), iter.Key())) {
       *aLength = iter.Key();
-      MOZ_ASSERT(*aLength > 4);
       return NS_OK;
     }
   }