test: remove unneeded exceptions and aliases from license validator

The `fs-monkey`, `memfs` and `spdx-license-ids` packages all now have valid license
fields and allowed licenses. All three have been removed from the exceptions
list.
Several SPDX license aliases have been removed as they are no longer used
by any dependencies within the project. The aliases only existed due to
previous non-standard SPDX identifiers present in used packages.
Additionally, the license validator automatically handles SPDX combination
syntax and combinations do not need to be listed explicitly.

Author: clydin

scripts/validate-licenses.ts

@@ -47,35 +47,21 @@ const allowedLicenses = [
   'Unlicense',
   'CC0-1.0',
   '0BSD',
-
-  // Combinations.
-  '(AFL-2.1 OR BSD-2-Clause)',
 ];
 
 // Name variations of SPDX licenses that some packages have.
 // Licenses not included in SPDX but accepted will be converted to MIT.
 const licenseReplacements: { [key: string]: string } = {
-  // Just a longer string that our script catches. SPDX official name is the shorter one.
-  'Apache License, Version 2.0': 'Apache-2.0',
-  'Apache2': 'Apache-2.0',
+  // Official SPDX identifier has a dash
   'Apache 2.0': 'Apache-2.0',
-  'Apache v2': 'Apache-2.0',
-  'AFLv2.1': 'AFL-2.1',
   // BSD is BSD-2-clause by default.
   'BSD': 'BSD-2-Clause',
 };
 
 // Specific packages to ignore, add a reason in a comment. Format: package-name@version.
 const ignoredPackages = [
-  // Us.
-  '@angular/[email protected]', // Hey, that's us!
-  // * Development only
-  '[email protected]', // CC0 but it's content only (index.json, no code) and not distributed.
-
   // * Broken license fields
   '[email protected]', // MIT but broken license in package.json
-  '[email protected]', // Unlicense but missing license field (PR: https://github.com/streamich/fs-monkey/pull/209)
-  '[email protected]', // Unlicense but missing license field (PR: https://github.com/streamich/memfs/pull/594)
 ];
 
 // Ignore own packages (all MIT)