Remove deprecated org.eclipse.lsp4j.websocket

Mitigation: either upgrade to Jakarta version or remain on older
version of LSP4J.

Fixes eclipse-lsp4j#647

Author: jonahgraham

CHANGELOG.md

@@ -13,6 +13,7 @@ Breaking API changes:
     * Remove deprecated static methods in the Either class, instead use TypeUtils helper methods [#877](https://github.com/eclipse-lsp4j/lsp4j/issues/877)
     * Remove deprecated factories [#878](https://github.com/eclipse-lsp4j/lsp4j/issues/878)
     * Remove deprecated ResponseErrorCode.serverNotInitialized, use ResponseErrorCode.ServerNotInitialized instead [#879](https://github.com/eclipse-lsp4j/lsp4j/issues/879)
+    * Remove deprecated org.eclipse.lsp4j.websocket. Please upgrade to using Jakarta or remain with LSP4J version 0.x.x [#647](https://github.com/eclipse-lsp4j/lsp4j/issues/647)
 
 japicmp report: <https://download.eclipse.org/lsp4j/builds/main/japicmp-report/>
 

gradle/versions.gradle

@@ -21,7 +21,6 @@ ext.versions = [
 	'gson': '[2.9.1,3.0)',
 
 	'websocket_jakarta': '2.0.0',
-	'websocket': '1.0',
 	'junit': '4.13.2',
 	'archunit': '1.2.1'
 ]