Reverting enabling endpoint discovery since it didn't have time during CCOA to bake in MPAC. (#1698)

src/Common/CosmosClient.ts

@@ -148,6 +148,9 @@ export function client(): Cosmos.CosmosClient {
     endpoint: endpoint() || "https://cosmos.azure.com", // CosmosClient gets upset if we pass a bad URL. This should never actually get called
     key: userContext.masterKey,
     tokenProvider,
+    connectionPolicy: {
+      enableEndpointDiscovery: false,
+    },
     userAgentSuffix: "Azure Portal",
     defaultHeaders: _defaultHeaders,
   };