Generate aten_interned_strings.h automatically (pytorch#69407)

Summary:
Pull Request resolved: pytorch#69407

This generates aten_interned_strings.h from `native_functions.yaml`
which is more like how it was originally done. The items deleted from
`interned_strings.h` are duplicates that need to be removed in order
for the code to compile, some of the remaining items may still be out
of date but it is fairly benign even if that's the case.

Test Plan: Imported from OSS

Reviewed By: zou3519

Differential Revision: D32923636

Pulled By: albanD

fbshipit-source-id: a0fd6b3714e70454c5f4ea9b19da5e047d2a4687

BUILD.bazel

@@ -79,6 +79,7 @@ generated_cpu_cpp = [
     "aten/src/ATen/MethodOperators.h",
     "aten/src/ATen/NativeMetaFunctions.h",
     "aten/src/ATen/RegistrationDeclarations.h",
+    "aten/src/ATen/core/aten_interned_strings.h",
     "aten/src/ATen/core/TensorBody.h",
     "aten/src/ATen/core/TensorMethods.cpp",
     "aten/src/ATen/core/ATenOpList.cpp",