iphone usually has upper cased .JPG extension

refactor

go/weed/weed_server/volume_server_handlers.go

@@ -150,16 +150,12 @@ func (vs *VolumeServer) PostHandler(w http.ResponseWriter, r *http.Request) {
 		writeJsonError(w, r, ve)
 		return
 	}
-	needle, ne := storage.NewNeedle(r)
+	needle, ne := storage.NewNeedle(r, vs.FixJpgOrientation)
 	if ne != nil {
 		writeJsonError(w, r, ne)
 		return
 	}
 
-	if vs.FixJpgOrientation && strings.HasSuffix(string(needle.Name), ".jpg") {
-		needle.Data = images.FixJpgOrientation(needle.Data)
-	}
-
 	ret := operation.UploadResult{}
 	size, errorStatus := topology.ReplicatedWrite(vs.masterNode, vs.store, volumeId, needle, r)
 	if errorStatus == "" {