remove the old empty argument triggers

unlike the marker based one its not composable

_pytest/python.py

@@ -871,8 +871,6 @@ class CallSpec2(object):
             getattr(self, valtype_for_arg)[arg] = val
             self.indices[arg] = param_index
             self._arg2scopenum[arg] = scopenum
-            if val is _notexists:
-                self._emptyparamspecified = True
         self._idlist.append(id)
         self.keywords.update(keywords)
 
@@ -992,8 +990,10 @@ class Metafunc(FuncargnamesCompatAttr):
             argvalues = [(_notexists,) * len(argnames)]
             # we passed a empty list to parameterize, skip that test
             #
+            fs, lineno = getfslineno(self.function)
             newmark = pytest.mark.skip(
-                reason='argument listing for %r was empty' % argnames)
+                reason="got empty parameter set, function %s at %s:%d" % (
+                    self.function.__name__, fs, lineno))
             newmarks = newkeywords.setdefault(0, {})
             newmarks[newmark.markname] = newmark
 
@@ -1415,15 +1415,6 @@ class Function(FunctionMixin, pytest.Item, FuncargnamesCompatAttr):
         self.ihook.pytest_pyfunc_call(pyfuncitem=self)
 
     def setup(self):
-        # check if parametrization happend with an empty list
-        try:
-            self.callspec._emptyparamspecified
-        except AttributeError:
-            pass
-        else:
-            fs, lineno = self._getfslineno()
-            pytest.skip("got empty parameter set, function %s at %s:%d" %(
-                self.function.__name__, fs, lineno))
         super(Function, self).setup()
         fillfixtures(self)