subcall: Remove leftover env variables

Author: lubej

subcall/src/vite-env.d.ts

@@ -1,11 +1 @@
 /// <reference types="vite/client" />
-
-interface ImportMetaEnv {
-  VITE_SUBCALL_ADDRESS: string
-  VITE_PARATIME_RUNTIME_ID: string
-  VITE_GRPC_URL: string
-}
-
-interface ImportMeta {
-  readonly env: ImportMetaEnv
-}