Delete metadata-extractor-2.9.1.jar

o2server/commons/ext/metadata-extractor-2.9.1.jar

@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:e0dee86a9755902cc3c962f5dafd8df229b4254104dfccad95e8db7b1d74fdfc
-size 285177