[Doc] Fix nested groups in FEM

src/Mod/Fem/femsolver/fenics/fenics_tools.py

@@ -257,6 +257,3 @@ class FacetFunctionFromXDMF:
 
     # TODO: write some functions to return integrals for Neumann and Robin
     # boundary conditions for the general case (i.e. vector, tensor)
-
-
-##  @}

src/Mod/Fem/femsolver/mystran/solver.py

@@ -92,6 +92,3 @@ class ViewProxy(solverbase.ViewProxy):
 
     def getIcon(self):
         return ":/icons/FEM_SolverMystran.svg"
-
-
-##  @}

src/Mod/Fem/femsolver/z88/solver.py

@@ -111,6 +111,3 @@ class ViewProxy(solverbase.ViewProxy):
 
     def getIcon(self):
         return ":/icons/FEM_SolverZ88.svg"
-
-
-##  @}