[lldb] Remove bindings/python/python-typemaps.h (#167966)

The minimum supported SWIG version is 4.0 so there's no need for using a
separate file anymore.

Author: JDevlieghere

lldb/bindings/python/python-typemaps.h

@@ -6,12 +6,6 @@ AND call SWIG_fail at the same time, because it will result in a double free.
 
 */
 
-%inline %{
-
-#include "../bindings/python/python-typemaps.h"
-
-%}
-
 %typemap(in) char ** {
   /* Check if is a list  */
   if (PythonList::Check($input)) {
@@ -640,6 +634,18 @@ template <> bool SetNumberFromPyObject<double>(double &number, PyObject *obj) {
 //
 // I've also moved the call to PyBuffer_Release to the end of the SWIG wrapper,
 // doing it right away is not legal according to the python buffer protocol.
+%inline %{
+struct Py_buffer_RAII {
+  Py_buffer buffer = {};
+  Py_buffer_RAII(){};
+  Py_buffer &operator=(const Py_buffer_RAII &) = delete;
+  Py_buffer_RAII(const Py_buffer_RAII &) = delete;
+  ~Py_buffer_RAII() {
+    if (buffer.obj)
+      PyBuffer_Release(&buffer);
+  }
+};
+%}
 
 %define %pybuffer_mutable_binary(TYPEMAP, SIZE)
 %typemap(in) (TYPEMAP, SIZE) (Py_buffer_RAII view) {