Remove unused packages and plugins

Author: muckSponge

UnityAsync/Assets/Plugins/System.Runtime.CompilerServices.Unsafe.dll

@@ -1,8 +1,6 @@
 {
   "dependencies": {
-    "com.unity.incrementalcompiler": "0.0.42-preview.24",
-    "com.unity.package-manager-ui": "1.9.11",
-    "com.unity.textmeshpro": "1.2.4",
+    "com.unity.package-manager-ui": "2.1.2",
     "com.unity.modules.ai": "1.0.0",
     "com.unity.modules.animation": "1.0.0",
     "com.unity.modules.assetbundle": "1.0.0",