🔒📦 Remove package because of unsecure dependency

Removed typedoc-plugin-typescript-declaration because the functionality seems to be included into typedoc from version 0.20.25 on.
Related line from typdoc [changelog](https://typedoc.org/changelog/)
- Support for specifying comments on export declarations [(7b7bf66)](TypeStrong/typedoc@7b7bf66), closes [#1504](TypeStrong/typedoc#1504)

This fix the security issue with using a dependency to a old marked package version.
[CVE-2021-21306](https://nvd.nist.gov/vuln/detail/CVE-2021-21306)

Author: DocuWareFM

package-lock.json

@@ -26,8 +26,7 @@
     "request-promise-native": "^1.0.9",
     "tar": "^6.1.2",
     "timespan": "^2.3.0",
-    "tough-cookie": "^4.0.0",
-    "typedoc-plugin-typescript-declaration": "^0.5.0"
+    "tough-cookie": "^4.0.0"
   },
   "devDependencies": {
     "@microsoft/tsdoc": "^0.13.2",