message: Fix: create TArrayI directly instead of calloc/adopt
  This was redundant and leading to Mismatched free() / delete / delete [] warning
diff: @@ -209,9 +209,7 @@ void AliSimDigits::ExpandTrackBuffer1()
  Int_t all = fNrows*fNcols; //total number of digits
  Int_t elems = all*fNlevel; //length of the buffer
  - TArrayI * buf = new TArrayI;
  - Int_t *bufData = (Int_t *) calloc(elems, sizeof(Int_t));
  - buf->Adopt(elems, bufData);
  + TArrayI * buf = new TArrayI(elems);
  fTrIndex->Set(0);
  //
  Int_t level = 0;
  