Reverts the following change of v2.42, because it did not fix anything:

- [Tried to fix snap mongodb-control not starting database](https://github.com/wekan/wekan/commit/2c5628b5fbcc25427021d0b22e74577a71149c21).

Thanks to xet7.

snap-src/bin/mongodb-control

@@ -29,4 +29,4 @@ if [ "x" != "x${MONGODB_PORT}" ]; then
 fi
 echo "mongodb bind options: $BIND_OPTIONS"
 
-mongod --dbpath $SNAP_COMMON --logpath $SNAP_COMMON/mongodb.log --logappend --journal $BIND_OPTIONS
+mongod --dbpath $SNAP_COMMON --logpath $SNAP_COMMON/mongodb.log --logappend --journal $BIND_OPTIONS --smallfiles