Restore 'static' to ext_removedMethodCalled
Restore 'static' to ext_removedMethodCalled

jiakai-lian/libextobjc,goodheart/libextobjc,sanojnambiar/libextobjc,telly/libextobjc,kolyuchiy/libextobjc,KBvsMJ/libextobjc,liuruxian/libextobjc,sunfei/libextobjc,WPDreamMelody/libextobjc,bboyesc/libextobjc,sandyway/libextobjc