class.c: Generated :reader methods should not put an OP_NEXTSTATE bef…

…ore OP_METHSTART

It doesn't show up in tests here, but it will confuse B::Deparse's
attempts to find the OP_METHSTART, as regular `method foo () { ... }`
will not have such a thing there.

class.c

@@ -1018,7 +1018,6 @@ apply_field_attribute_reader(pTHX_ PADNAME *pn, SV *value)
     }
 
     OP *ops = newLISTOPn(OP_LINESEQ, 0,
-            newSTATEOP(0, NULL, NULL),
             methstartop,
             argcheckop,
             retop,