Reverts llvm/llvm-project#153119 because with `LLDB_USE_LIBEDIT_READLINE_COMPAT_MODULE`, we're using `PyImport_Inittab` which isn't part of the stable API.
Reverts llvm/llvm-project#153119 because with `LLDB_USE_LIBEDIT_READLINE_COMPAT_MODULE`, we're using `PyImport_Inittab` which isn't part of the stable API.