Drop now-unused variable.

Author: Yhg1s

Python/specialize.c

@@ -2421,7 +2421,6 @@ _Py_Specialize_CompareOp(_PyStackRef lhs_st, _PyStackRef rhs_st, _Py_CODEUNIT *i
     assert(_PyOpcode_Caches[COMPARE_OP] == INLINE_CACHE_ENTRIES_COMPARE_OP);
     // All of these specializations compute boolean values, so they're all valid
     // regardless of the fifth-lowest oparg bit.
-    _PyCompareOpCache *cache = (_PyCompareOpCache *)(instr + 1);
     if (Py_TYPE(lhs) != Py_TYPE(rhs)) {
         SPECIALIZATION_FAIL(COMPARE_OP, compare_op_fail_kind(lhs, rhs));
         goto failure;