Uninstall GM4 Seasons Calendar

summon FallingSand ~ ~1.5 ~ {Motion:[0.0d,-1.0d,0.0d],Time:1,DropItem:0,Block:redstone_block,Passengers:[
{id:FallingSand,Time:1,DropItem:0,Block:activator_rail},
{id:MinecartCommandBlock,Command:execute @e[type=ArmorStand,name=GM4_seasonsCalendar,c=1] ~ ~ ~ setblock ~-1 ~ ~ air},{id:MinecartCommandBlock,Command:execute @e[type=ArmorStand,name=GM4_seasonsCalendar,c=1] ~ ~ ~ setblock ~ ~1 ~1 air},
{id:MinecartCommandBlock,Command:execute @e[type=ArmorStand,name=GM4_seasonsCalendar,c=1] ~ ~ ~ fill ~ ~ ~ ~15 ~ ~1 air},{id:MinecartCommandBlock,Command:kill @e[type=ArmorStand,name=GM4_seasonsCalendar,c=1]},{id:MinecartCommandBlock,Command:setblock ~ ~-2 ~ command_block 0 replace {SuccessCount:0b,auto:1b,Command:fill ~ ~ ~ ~ ~2 ~ air}},{id:MinecartCommandBlock,Command:kill @e[type=MinecartCommandBlock,r=1]}]}