Remove references to make get_vendor_deps

docs/tools/benchmarking.md

@@ -75,6 +75,5 @@ Each of the connections is handled via two separate goroutines.
 ## Development
 
 ```
-make get_vendor_deps
 make test
 ```

docs/tools/monitoring.md

@@ -88,6 +88,5 @@ websocket.
 
 ```
 make get_tools
-make get_vendor_deps
 make test
 ```