address review: drop const (seems wrong for me)

Author: skirpichev

Modules/_decimal/_decimal.c

@@ -2336,9 +2336,9 @@ dec_from_long(decimal_state *state, PyTypeObject *type, PyObject *v,
     }
     if (export_long.digits) {
         const PyLongLayout *layout = PyLong_GetNativeLayout();
-        const uint32_t base = (uint32_t)1 << layout->bits_per_digit;
-        const uint8_t sign = export_long.negative ? MPD_NEG : MPD_POS;
-        const Py_ssize_t len = export_long.ndigits;
+        uint32_t base = (uint32_t)1 << layout->bits_per_digit;
+        uint8_t sign = export_long.negative ? MPD_NEG : MPD_POS;
+        Py_ssize_t len = export_long.ndigits;
 
         assert(layout->bits_per_digit <= 32);
         assert(layout->digits_order == -1);
@@ -2356,7 +2356,7 @@ dec_from_long(decimal_state *state, PyTypeObject *type, PyObject *v,
         PyLong_FreeExport(&export_long);
     }
     else {
-        const int64_t value = export_long.value;
+        int64_t value = export_long.value;
 
         if (-(int64_t)UINT32_MAX <= value && value <= (int64_t)UINT32_MAX) {
             _dec_settriple(dec, value < 0 ? MPD_NEG : MPD_POS,