minor optimisation on the way we create the compounds query

Former-commit-id: 8fccba91853c07497010a47b5efd6ff0fb1fd502

ippisite/ippidb/views.py

@@ -168,7 +168,7 @@ def compound_list(request):
     """
     Display the list of compounds
     """
-    compounds = Compound.objects.all().order_by('id')
+    compounds = Compound.objects.order_by('id')
     # if filtering on "action on PPI"
     if request.GET.get('ppi'):
         compounds = compounds.filter(compoundaction__ppi__id__in=request.GET.getlist('ppi'))