headers: Remove no longer exported functions

There were a leftover few prototypes of Curl_ functions that we used to
export but no longer do, this removes those prototypes and cleans up any
comments still referring to them.

Curl_write32_le(), Curl_strcpy_url(), Curl_strlen_url(), Curl_up_free()
Curl_concat_url(), Curl_detach_connnection(), Curl_http_setup_conn()
were made static in 05b100aee247bb9bec8e9a1b0166496aa4248d1c.
Curl_http_perhapsrewind() made static in 574aecee208f79d391f10d57520b3.

For the remainder, I didn't trawl the Git logs hard enough to capture
their exact time of deletion, but they were all gone: Curl_splayprint(),
Curl_http2_send_request(), Curl_global_host_cache_dtor(),
Curl_scan_cache_used(), Curl_hostcache_destroy(), Curl_second_connect(),
Curl_http_auth_stage() and Curl_close_connections().

Closes #4096
Reviewed-by: Daniel Stenberg <daniel@haxx.se>

1 files changed, 0 insertions, 3 deletions

diff --git a/lib/urlapi-int.h b/lib/urlapi-int.h
index 5f059c203..d14d53d97 100644
--- a/lib/urlapi-int.h
+++ b/lib/urlapi-int.h
@@ -26,9 +26,6 @@
 #define MAX_SCHEME_LEN 40
 
 bool Curl_is_absolute_url(const char *url, char *scheme, size_t buflen);
-char *Curl_concat_url(const char *base, const char *relurl);
-size_t Curl_strlen_url(const char *url, bool relative);
-void Curl_strcpy_url(char *output, const char *url, bool relative);
 
 #ifdef DEBUGBUILD
 CURLUcode Curl_parse_port(struct Curl_URL *u, char *hostname);