De-duplicate alphadecays.txt #8285

Job	Run time
classicmode_1d_3dgrid	4m 18s
classicmode_3d	7m 51s
kilonova_1d_1dgrid	5m 13s
kilonova_1d_3dgrid	5m 24s
kilonova_2d_2dgrid	7m 7s
kilonova_2d_2dgrid_barnesthermalisation	5m 26s
kilonova_2d_2dgrid_expansionopac	4m 59s
kilonova_2d_2dgrid_xcomgammaphotoion	5m 18s
kilonova_2d_3dgrid	6m 52s
nebular_1d_3dgrid	12m 1s
nebular_1d_3dgrid_limitbfest	13m 50s
combine_checksums	18s
	1h 18m 37s

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