Remove restore.sh because of global.json
Remove restore.sh because of global.json

`dnu restore` works appropriately with the global.json to restore all
the pacakges

bingbing8/PowerShell,JamesWTruher/PowerShell-1,bmanikm/PowerShell,jsoref/PowerShell,bmanikm/PowerShell,JamesWTruher/PowerShell-1,daxian-dbw/PowerShell,JamesWTruher/PowerShell-1,bmanikm/PowerShell,KarolKaczmarek/PowerShell,kmosher/PowerShell,daxian-dbw/PowerShell,bingbing8/PowerShell,KarolKaczmarek/PowerShell,TravisEz13/PowerShell,KarolKaczmarek/PowerShell,bingbing8/PowerShell,daxian-dbw/PowerShell,PaulHigin/PowerShell,PaulHigin/PowerShell,KarolKaczmarek/PowerShell,KarolKaczmarek/PowerShell,PaulHigin/PowerShell,jsoref/PowerShell,bingbing8/PowerShell,bmanikm/PowerShell,kmosher/PowerShell,jsoref/PowerShell,kmosher/PowerShell,PaulHigin/PowerShell,TravisEz13/PowerShell,jsoref/PowerShell,kmosher/PowerShell,JamesWTruher/PowerShell-1,bmanikm/PowerShell,kmosher/PowerShell,TravisEz13/PowerShell,bingbing8/PowerShell,jsoref/PowerShell,TravisEz13/PowerShell,daxian-dbw/PowerShell