Remove some disabled (commented or ifdef'd out) code

src/fallback.cpp

@@ -211,21 +211,6 @@ size_t wcslcpy(wchar_t *dst, const wchar_t *src, size_t siz) {
 }
 #endif
 
-#if 0
-// These are not currently used.
-#ifndef HAVE_LRAND48_R
-int lrand48_r(struct drand48_data *buffer, long int *result) {
-    *result = rand_r(&buffer->seed);
-    return 0;
-}
-
-int srand48_r(long int seedval, struct drand48_data *buffer) {
-    buffer->seed = (unsigned int)seedval;
-    return 0;
-}
-#endif
-#endif
-
 #ifndef HAVE_FUTIMES
 int futimes(int fd, const struct timeval *times) {
     errno = ENOSYS;

src/history.cpp

@@ -555,15 +555,6 @@ bool history_item_t::merge(const history_item_t &item) {
     return result;
 }
 
-#if 0
-history_item_t::history_item_t(const wcstring &str)
-    : contents(str), contents_lower(L""), creation_timestamp(time(NULL)), identifier(0) {
-        for (wcstring::const_iterator it = str.begin(); it != str.end(); ++it) {
-                contents_lower.push_back(towlower(*it));
-        }
-    }
-#endif
-
 history_item_t::history_item_t(const wcstring &str, time_t when, history_identifier_t ident)
     : contents(str), contents_lower(L""), creation_timestamp(when), identifier(ident) {
     for (wcstring::const_iterator it = str.begin(); it != str.end(); ++it) {

src/io.cpp

@@ -44,12 +44,6 @@ void io_buffer_t::read() {
     exec_close(pipe_fd[1]);
 
     if (io_mode == IO_BUFFER) {
-#if 0
-        if (fcntl( pipe_fd[0], F_SETFL, 0)) {
-            wperror( L"fcntl" );
-            return;
-        }
-#endif
         debug(4, L"io_buffer_t::read: blocking read on fd %d", pipe_fd[0]);
         while (1) {
             char b[4096];

src/parse_tree.cpp

@@ -1096,13 +1096,6 @@ bool parse_tree_from_string(const wcstring &str, parse_tree_flags_t parse_flags,
     // Acquire the output from the parser.
     parser.acquire_output(output, errors);
 
-#if 0
-    //wcstring result = dump_tree(this->parser->nodes, str);
-    //fwprintf(stderr, L"Tree (%ld nodes):\n%ls", this->parser->nodes.size(), result.c_str());
-    fwprintf(stderr, L"%lu nodes, node size %lu, %lu bytes\n", output->size(), sizeof(parse_node_t),
-            output->size() * sizeof(parse_node_t));
-#endif
-
     // Indicate if we had a fatal error.
     return !parser.has_fatal_error();
 }

src/proc.cpp

@@ -333,16 +333,6 @@ static void handle_child_status(pid_t pid, int status) {
         sigaction(SIGQUIT, &act, 0);
         kill(getpid(), WTERMSIG(status));
     }
-
-#if 0
-    // TODO: Decide whether to eliminate this block or have it emit a warning message.
-    // WARNING: See the special short-circuit logic above vis-a-vis signals.
-    if (!found_proc) {
-        // A child we lost track of? There have been bugs in both subshell handling and in builtin
-        // handling that have caused this previously...
-    }
-#endif
-    return;
 }
 
 process_t::process_t() {}

src/reader.cpp

@@ -2693,7 +2693,6 @@ const wchar_t *reader_readline(int nchars) {
                     data->search_mode = history_search_mode_t::none;
 
                     if (data->token_history_pos == (size_t)-1) {
-                        // history_reset();
                         data->history_search.go_to_end();
                         reader_set_buffer(data->search_buff, data->search_buff.size());
                     } else {