Forcefully disconnect GPS unit from kernel
Your laptop does not have a GPS receiver so there is nothing to disconnect (phones do have a GPS chip).

Your location is determined by a couple of methods: 


a database of wifi access points. Those locations are in turn determined when a device with GPS accesses the same wifi. This can be accurate down to the building.
geolocating your IP address. Usually accurate to the neighbourhood level, occasionally down to the building.


You can block the first one by turning off location services and/or changing your wifi access point (meaning you buy a brand new one, and then never use it with a phone).

You cannot block the second one. The website needs your IP address in order to reply to you, and if it has your IP address it can get your location.

Try a VPN service. Your IP will then be Somewhere Else. This will break searches like "Find  near here".