message: fix: duplicate isModuleInstalled checking
diff: @@ -229,11 +229,8 @@ export class PythonExecutionService {
  // If a module is not installed we'll have something in stderr.
  if (ErrorUtils.outputHasModuleNotInstalledError(moduleName, result.stderr)) {
  - const isInstalled = await this.isModuleInstalled(moduleName!);
  - if (!isInstalled) {
  throw new ModuleNotInstalledError(moduleName!);
  }
  - }
  return result;
  }
  