Revert "protobuf_grpc: google serializing and RPC library"

This reverts commit 5587d78e89.

Issue #190

src/test/grpc/server/main.cc

@@ -1,50 +0,0 @@
-#include <base/attached_rom_dataspace.h>
-#include <libc/component.h>
-#include <base/heap.h>
-#include <base/log.h>
-#include <base/thread.h>
-#include "greeter_server.h"
-
-enum { STACK_SIZE = 0xF000 };
-
-namespace Tee_server {
-	using namespace Genode;
-
-	class Runner;
-	class Server_main;
-}
-
-class Tee_server::Runner : public Thread
-{
-	public:
-		Runner(Env& env)
-			: Thread(env, "runner", STACK_SIZE)
-		{
-		}
-
-		void entry() override
-		{
-			Libc::with_libc([] () {
-				RunServer();
-			});
-		}
-};
-
-class Tee_server::Server_main
-{
-	private:
-		Env& _env;
-		Runner _runner { _env };
-
-	public:
-		Server_main(Env& env)
-			: _env(env)
-		{
-			_runner.start();
-		}
-};
-
-void Libc::Component::construct(Libc::Env &env)
-{
-	static Tee_server::Server_main main(env);
-}