Undo addition of stable headers in forced_align

Author: samanklesaria

src/libtorchaudio/forced_align/cpu/compute.cpp

@@ -1,8 +1,5 @@
 #include <torch/script.h>
 #include <torch/torch.h>
-#include <torch/csrc/stable/library.h>
-#include <torch/csrc/stable/tensor.h>
-#include <torch/csrc/stable/ops.h>
 #include <torch/csrc/inductor/aoti_torch/c/shim.h>
 
 using namespace std;