base.bbclass: remove unneeded anti-bashism
base.bbclass: remove unneeded anti-bashism

diorcety/oe-lite-core,sknsean/core,diorcety/oe-lite-core,sknsean/core,hundeboll/core,sknsean/core,hundeboll/core,hundeboll/core,hundeboll/core,sknsean/core,sknsean/core