delete plot heatmap cluster

in 'heatmap cluster' delete plot heatmap which prints hm to out:

 ->plot heatmap for each subgroup 
--[dendrogram w/ 2 branches and 113 members at h = 3.74]
  |--[dendrogram w/ 2 branches and 65 members at h = 1.35]
  |  |--[dendrogram w/ 2 branches and 47 members at h = 0.726]
  |  |  |--[dendrogram w/ 2 branches and 21 members at h = 0.437]
  |  |  |  |--[dendrogram w/ 2 branches and 15 members at h = 0.267]
  |  |  |  |  |--[dendrogram w/ 2 branches and 2 members at h = 0.133]
  |  |  |  |  |  |--leaf "33528"