LibTLS: Remove some unused/unimplemented declarations

Author: https://github.com/alimpfard
Commit: 6f5ab30253
Pull-request: https://github.com/SerenityOS/serenity/pull/12235
Reviewed-by: https://github.com/awesomekling
Reviewed-by: https://github.com/sin-ack ✅

Userland/Libraries/LibTLS/TLSv12.h

@@ -246,12 +246,8 @@ struct Options {
 };
 
 struct Context {
-    String to_string() const;
-    bool verify() const;
     bool verify_chain() const;
 
-    static void print_file(StringView fname);
-
     Options options;
 
     u8 remote_random[32];
@@ -471,8 +467,6 @@ private:
     ssize_t handle_message(ReadonlyBytes);
     ssize_t handle_random(ReadonlyBytes);
 
-    size_t asn1_length(ReadonlyBytes, size_t* octets);
-
     void pseudorandom_function(Bytes output, ReadonlyBytes secret, const u8* label, size_t label_length, ReadonlyBytes seed, ReadonlyBytes seed_b);
 
     size_t key_length() const