Remove Twitter links

Author: dondonz

blog/2021-02-12-spec-releases-are-not-important.md

@@ -50,5 +50,3 @@ It is better to think about certain features you want to discuss instead referri
 
 # Feedback or questions
 We use [GitHub Discussions](https://github.com/graphql-java/graphql-java/discussions) for general feedback and questions.
-
-You can also contact us on Twitter: [@graphql_java](https://twitter.com/graphql_java)

blog/2021-08-03-17-released-and-lts.md

@@ -17,5 +17,5 @@ Going forward we decided to no offer any LTS versions anymore. We will only acti
 the latest version (currently 17). We may backport critical bugfixes, but we are not committed to it.
 
 If this is a huge problem for you or your Company and you are willing to help us with maintaining a LTS
-version you can reach us at Twitter [GraphQL Java](https://twitter.com/graphql_java) or per mail at
+version you can reach us via email at
 hello at graphql-java dot com.

docusaurus.config.js

@@ -103,10 +103,6 @@ const config = {
                 label: 'GitHub Discussions',
                 href: 'https://github.com/graphql-java/graphql-java/discussions',
               },
-              {
-                label: 'Twitter',
-                href: 'https://twitter.com/graphql_java',
-              },
             ],
           },
           {

src/pages/about.md

@@ -6,8 +6,6 @@ hide_table_of_contents: true
 
 # About
 
-The GraphQL Java project is run by [Andreas Marek](https://twitter.com/andimarek), [Brad Baker](https://github.com/bbakerman), and [Donna Zhou](https://github.com/dondonz).
+The GraphQL Java project is run by [Andreas Marek](https://github.com/andimarek), [Brad Baker](https://github.com/bbakerman), and [Donna Zhou](https://github.com/dondonz).
 
 Andreas Marek is responsible for the content of this website.
-
-You can also follow [GraphQL Java on Twitter](https://twitter.com/graphql_java).