Yes, you need to move it. Anything left in a communal hallway, which includes prams, bikes, shoe racks, etc, is a fire risk and you cannot leave it in the hallway.
We have a zero tolerance policy with stuff left in communal hallways at our block. The managing agent comes around every month and removes everything left in the hallways or the meter cupboards. If the owners wants it back, it's £30. If they don't, it gets sold and the proceeds go to charity.