Remove client-only env restriction from fabric-rendering-fluids-v1.

This is a workaround for transfer-api having unsatisfiable dependencies
in the dedicated server environemnt. Fabric Loader 0.11 doesn't check
this dependency correctly, but it breaks on 0.12 - as it should. A proper
solution is too incompatible for now.

fabric-rendering-fluids-v1/src/main/resources/fabric.mod.json

@@ -3,7 +3,6 @@
   "id": "fabric-rendering-fluids-v1",
   "name": "Fabric Rendering Fluids (v1)",
   "version": "${version}",
-  "environment": "client",
   "license": "Apache-2.0",
   "icon": "assets/fabric-rendering-fluids-v1/icon.png",
   "contact": {