No need to split this into two if else block

Author: hwpang

src/Parse.jl

@@ -169,16 +169,11 @@ function getatomdictadjlist(adjlist)
     _ , cutting_label_list = fragment.Fragment().detect_cutting_label(adjlist)
     if isempty(cutting_label_list)
         mol = molecule.Molecule().from_adjacency_list(adjlist)
+        getatomdictfromrmg(mol)
     else
         mol = fragment.Fragment().from_adjacency_list(adjlist)
-    end
-    if pybuiltin(:isinstance)(mol, molecule.Molecule)
-        getatomdictfromrmg(mol)
-    elseif pybuiltin(:isinstance)(mol, fragment.Fragment)
         mol.assign_representative_molecule()
         getatomdictfromrmg(mol.mol_repr)
-    else
-        @error("Unrecognizable molecule type $mol")
     end
 end
 export getatomdictadjlist