Remove projects with dead links

Author: millerdrew

implementations.md

@@ -196,10 +196,7 @@ Various levels of support for UI generation primarily from the validation vocabu
     -   [JSON Form (joshfire)](https://github.com/joshfire/jsonform) (joshfire) (MIT)
     -   [Json Forms (brutusin)](https://github.com/brutusin/json-forms) (brutusin) (MIT)
     -   [JSONForms (jsonforms.io)](https://jsonforms.io/) (EclipseSource) (MIT)
-    -   [Jsonary](https://github.com/jsonary-js/) (MIT)
     -   [Liform-react](https://github.com/Limenius/liform-react) (MIT)
-    -   [Metawidget](https://metawidget.org/) (LGPL)
-    -   [pure-form webcomponent](https://github.com/john-doherty/pure-form) (MIT)
     -   [React JSON Schema Form (mozilla)](https://github.com/mozilla-services/react-jsonschema-form) (Apache 2)
     -   [React Schema Form (networknt)](https://github.com/networknt/react-schema-form) (MIT)
     -   [uniforms (Vazco)](https://github.com/vazco/uniforms) (MIT)