target a newer jemalloc

This is what I'm building the packages with
target a newer jemalloc 

followup to dd11bf89916e2c1f9ce9c056db37cb432c030f2a
Merge pull request #2175 from staabm/patch-1

target a newer jemalloc
delete unused configure_ubuntu file relict
Merge pull request #2176 from staabm/patch-1

delete unused configure_ubuntu file relict