Remove python installation from Dockerfile-71
Remove python installation from Dockerfile-71

Python can be installed by using the WORKSPACE_INSTALL_PYTHON
variable in the .env file. Fixes #1238

a-h-abid/laradock,schiggi/laradock,schiggi/laradock,hnquang112/laradock,luciano-jr/laradock,ralphowino/laradock,bestlong/laradock,Harmonic/laradock,cjnchk/laradock,arkadiusjonczek/laradock,Harmonic/laradock,zuohuadong/laradock,springjk/laradock,zuohuadong/laradock,ancon/laradock,cjnchk/laradock,jinnawat/laradock,ralphowino/laradock,hp9390/laradock,springjk/laradock,tharaxodia/laradock,olegl-hyuna/laradock,arkadiusjonczek/laradock,ralphowino/laradock,AliveCorpse/laradock,cjnchk/laradock,arkadiusjonczek/laradock,hnquang112/laradock,Harmonic/laradock,luciano-jr/laradock,arkadiusjonczek/laradock,hnquang112/laradock,schiggi/laradock,jinnawat/laradock,ydatech/yii2-laradock,schiggi/laradock,jfoliveira/laradock,a-h-abid/laradock,zuohuadong/laradock,bestlong/laradock,ancon/laradock,ydatech/yii2-laradock,bestlong/laradock,AliveCorpse/laradock,jfoliveira/laradock,ralphowino/laradock,jinnawat/laradock,cjnchk/laradock,olegl-hyuna/laradock,springjk/laradock,tharaxodia/laradock,springjk/laradock,bestlong/laradock,hp9390/laradock,zuohuadong/laradock,hnquang112/laradock,LaraDock/laradock,Harmonic/laradock,bestlong/laradock,jinnawat/laradock