Remove unused direct dependencies

Author: dam2k

composer.json

@@ -17,9 +17,7 @@
         "php": "^8.2",
         "amphp/amp": "^3.0",
         "amphp/byte-stream": "^2.0",
-        "amphp/socket": "^2.0",
-        "amphp/sync": "^2.0",
-        "revolt/event-loop": "^1.0"
+        "amphp/socket": "^2.0"
     },
     "require-dev": {
         "phpstan/phpstan": "^2.1",