[Draft] Enable PyREPL for 3.13 and above

Author: edvilme

src/client/terminals/pythonStartup.ts

@@ -22,8 +22,6 @@ async function applyPythonStartupSetting(context: ExtensionContext): Promise<voi
         const sourcePath = path.join(EXTENSION_ROOT_DIR, 'python_files', 'pythonrc.py');
         await copy(Uri.file(sourcePath), destPath, { overwrite: true });
         context.environmentVariableCollection.replace('PYTHONSTARTUP', destPath.fsPath);
-        // When shell integration is enabled, we disable PyREPL from cpython.
-        context.environmentVariableCollection.replace('PYTHON_BASIC_REPL', '1');
         context.environmentVariableCollection.description = new MarkdownString(
             Interpreters.shellIntegrationEnvVarCollectionDescription,
         );