Revert "Prevent attaching to a process with a different architecture"

This reverts commit 746ecfc.

That commit isn't correct. It conflates the return from `IsWow64Process`
(whether the process is running under 32-bit emulation on a 64-bit
process) with whether the process is 64-bit. A 32-bit process on 32-bit
Windows would have `IsWow64Process` set our `isWow64` flag to `FALSE`,
and we'd then incorrectly return `TRUE` from `is_process64Bit`.

Author: godlygeek

Python/remote_debugging.c

@@ -422,28 +422,6 @@ search_map_for_section(proc_handle_t *handle, const char* secname, const char* m
 
 #ifdef MS_WINDOWS
 
-static BOOL is_process64Bit(HANDLE hProcess) {
-    BOOL isWow64 = FALSE;
-    if (IsWow64Process(hProcess, &isWow64)) {
-        return !isWow64;
-    }
-    else {
-        PyErr_SetString(PyExc_RuntimeError, "Failed to determine the architecture of the process.");
-        return FALSE;
-    }
-}
-
-static
-BOOL is_current_process64Bit() {
-#if defined(_WIN64)
-    return TRUE;
-#elif defined(_WIN32)
-    return is_process64Bit(GetCurrentProcess());
-#else
-    return FALSE;
-#endif
-}
-
 static void* analyze_pe(const wchar_t* mod_path, BYTE* remote_base, const char* secname) {
     HANDLE hFile = CreateFileW(mod_path, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
     if (hFile == INVALID_HANDLE_VALUE) {
@@ -504,16 +482,6 @@ static void* analyze_pe(const wchar_t* mod_path, BYTE* remote_base, const char*
 
 static uintptr_t
 search_windows_map_for_section(proc_handle_t* handle, const char* secname, const wchar_t* substr) {
-    // Check if the architecture of the current process matches the target process
-    BOOL currentProcess64Bit = is_current_process64Bit();
-    BOOL targetProcess64Bit = is_process64Bit(handle->hProcess);
-
-    // If the architectures of the current and target processes differ, abort
-    if (currentProcess64Bit != targetProcess64Bit) {
-        PyErr_SetString(PyExc_RuntimeError, "Bitness mismatch between current process and target process.");
-        return 0;
-    }
-
     HANDLE hProcSnap;
     do {
         hProcSnap = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, handle->pid);