remove hacky && fix from command block

tools/celesta/celesta.xml

@@ -22,7 +22,6 @@
  --lowfilter '$low_threshold'
  --highfilter '$high_threshold'
  #end if
- &&
  #else if str($runmode.selected_mode) == 'assign_cells':
  Rscript '$__tool_directory__/celesta_assign_cells.R'
  --imagingdata '$anndata'
@@ -42,22 +41,16 @@
  #if $high_thresholds_file:
  --highexpthresh '$high_thresholds_file'
  #end if 
- &&
  #for $p in $plot_cells:
- Rscript '$__tool_directory__/celesta_plot_cells.R'
+ && Rscript '$__tool_directory__/celesta_plot_cells.R'
  --prior '$prior_info'
  --celltypes '${p.cell_types}'
  --size '$p.test_size' 
  --height '$p.height' 
  --width '$p.width' 
  --dpi '$p.dpi' 
- &&
  #end for
  #end if
-
- ##final command to satisfy double ampersands 
- echo 'CELESTA' $runmode.selected_mode 'complete'
-
  ]]>
  </command>
  <configfiles>