Bug 514722 - Remove unneeded buildid directory. r=ted

Makefile.in

@@ -193,7 +193,6 @@ ifdef MOZ_CRASHREPORTER
 	  $(MAKE_SYM_STORE_PATH) >                                        \
 	  $(DIST)/crashreporter-symbols/$(SYMBOL_INDEX_NAME)
 	echo packing symbols
-	mkdir -p $(topsrcdir)/../$(BUILDID)
 	cd $(DIST)/crashreporter-symbols && \
           zip -r9D ../"$(SYMBOL_ARCHIVE_BASENAME).zip" .
 endif # MOZ_CRASHREPORTER