docs: remove protobuf from docs

doc/build-windows.md

@@ -62,8 +62,7 @@ First, install the general dependencies:
     sudo apt install build-essential libtool autotools-dev automake pkg-config bsdmainutils curl git
 
 A host toolchain (`build-essential`) is necessary because some dependency
-packages (such as `protobuf`) need to build host utilities that are used in the
-build process.
+packages need to build host utilities that are used in the build process.
 
 See [dependencies.md](dependencies.md) for a complete overview.