temp hide java sdk from docs until we figure out community branding (#548)

Author: maxkorp

docs/docs.json

@@ -108,38 +108,6 @@
                 "pages": ["sdk/python/encoder/overview"]
               }
             ]
-          },
-          {
-            "group": "Java",
-            "pages": [
-              "sdk/java/overview",
-              {
-                "group": "Core",
-                "pages": [
-                  "sdk/java/core/overview",
-                  "sdk/java/core/types",
-                  "sdk/java/core/events",
-                  "sdk/java/core/stream",
-                  "sdk/java/core/subscription"
-                ]
-              },
-              {
-                "group": "Client",
-                "pages": [
-                  "sdk/java/client/overview",
-                  "sdk/java/client/abstract-agent",
-                  "sdk/java/client/http-agent",
-                  "sdk/java/client/subscriber"
-                ]
-              },
-              {
-                "group": "Server",
-                "pages": [
-                  "sdk/java/server/overview",
-                  "sdk/java/server/spring"
-                ]
-              }
-            ]
           }
         ]
       }
@@ -155,11 +123,6 @@
           "anchor": "Python SDK",
           "href": "https://docs.ag-ui.com/sdk/python/core/overview",
           "icon": "python"
-        },
-        {
-          "anchor": "Java SDK",
-          "href": "http://localhost:4000/sdk/java/overview",
-          "icon": "java"
         }
       ]
     }