Don't worry, if you can knock out the concrete part of the post cutting the reinforcing steels will take seconds with an angle grinder and metal cutting disc. Subsequent homeowners will call you every cunt under the sun when they try to plant in the exact position of the remaining stubs.
We're planning to plant some screening plants where the fence was, so the subsequent homeowners will have wildly overgrown laurels to contend with before they can think about new planting.
Don't worry, if you can knock out the concrete part of the post cutting the reinforcing steels will take seconds with an angle grinder and metal cutting disc. Subsequent homeowners will call you every cunt under the sun when they try to plant in the exact position of the remaining stubs.