refactor(@angular/cli): adjust bun's manifest field formatter

Removes the `viewCommandFieldArgFormatter` from the `bun` package manager descriptor. While `bun` supports field-filtered registry views, it is limited to a single field at a time. The current package manager abstraction requires support for multiple fields.

This change ensures that the package manager abstraction for `bun` is more accurate and avoids potential issues with unsupported command arguments.

Author: clydin

packages/angular/cli/src/package-managers/package-manager-descriptor.ts

@@ -243,7 +243,6 @@ export const SUPPORTED_PACKAGE_MANAGERS = {
     versionCommand: ['--version'],
     listDependenciesCommand: ['pm', 'ls', '--json'],
     getManifestCommand: ['pm', 'view', '--json'],
-    viewCommandFieldArgFormatter: (fields) => [...fields],
     outputParsers: {
       listDependencies: parseNpmLikeDependencies,
       getRegistryManifest: parseNpmLikeManifest,