Revert "Merge pull request 'Merge all 5 batch PRs: security, CLI features, protocol, performance, tests/docs' (#143) from merge-all-v2 into main"

This reverts commit 29f4f8cde6, reversing
changes made to c6bf7bb84e.

src/shared/config.h

@@ -3,7 +3,6 @@
 
 #include <stdbool.h>
 #include <stdint.h>
-#include <stdio.h>
 
 typedef enum { TRANSPORT_TCP, TRANSPORT_SSH } TransportType;
 
@@ -42,18 +41,11 @@ typedef struct Config {
   char* tls_cert;
   char* tls_key;
   char* tls_ca;
-  int timeout;
-  int contimeout;
-  bool quiet;
-  bool backup;
-  char* backup_dir;
-  bool stats;
-  int max_depth;
-  FILE* log_file;
-  int queue_size;
+  bool follow_symlinks;
+  bool partial;
 } Config;
 
-#define PROTOCOL_VERSION "1.3.0"
+#define PROTOCOL_VERSION "2.0.0"
 #define DEFAULT_CHUNK_SIZE (10 * 1024 * 1024)
 
 Config* config_create(char* version, char* send_directory, char* receive_directory,