Bug 1346859 - Remove dead code found by clang-tidy in unix/nsOSHelperAppService.cpp r=froydnj

MozReview-Commit-ID: H8lanTsuNxX

--HG--
extra : rebase_source : ab3745d6de24a787c7ae80edb98bbc213425a38b

uriloader/exthandler/unix/nsOSHelperAppService.cpp

@@ -731,10 +731,6 @@ nsOSHelperAppService::ParseNetscapeMIMETypesEntry(const nsAString& aEntry,
         --aDescriptionEnd;
       } while (aDescriptionEnd != aDescriptionStart &&
                nsCRT::IsAsciiSpace(*aDescriptionEnd));
-
-      if (aDescriptionStart != aDescriptionStart && *aDescriptionEnd == '"') {
-        --aDescriptionEnd;
-      }
     } else {
       // desc= after exts=, so use end_iter for the description end
       aDescriptionEnd = end_iter;