chore(libsinsp): remove unused parse_iso8601_utc_string function

Signed-off-by: Roberto Scolaro <roberto.scolaro21@gmail.com>

userspace/libsinsp/utils.cpp

@@ -1049,34 +1049,6 @@ void sinsp_utils::ts_to_iso_8601(uint64_t ts, OUT std::string* res)
 // Time utility functions.
 ///////////////////////////////////////////////////////////////////////////////
 
-bool sinsp_utils::parse_iso_8601_utc_string(const std::string& time_str, uint64_t &ns)
-{
-#ifndef _WIN32
-	tm tm_time{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-	char* rem = strptime(time_str.c_str(), "%Y-%m-%dT%H:%M:", &tm_time);
-	if(rem == NULL || *rem == '\0')
-	{
-		return false;
-	}
-	tm_time.tm_isdst = -1; // strptime does not set this, signal timegm to determine DST
-	ns = timegm(&tm_time) * ONE_SECOND_IN_NS;
-
-	// Handle the possibly fractional seconds now. Also verify
-	// that the string ends with Z.
-	double fractional_secs;
-	if(sscanf(rem, "%lfZ", &fractional_secs) != 1)
-	{
-		return false;
-	}
-
-	ns += (fractional_secs * ONE_SECOND_IN_NS);
-
-	return true;
-#else
-	throw sinsp_exception("parse_iso_8601_utc_string() not implemented on Windows");
-#endif
-}
-
 time_t get_epoch_utc_seconds(const std::string& time_str, const std::string& fmt)
 {
 #ifndef _WIN32

userspace/libsinsp/utils.h

@@ -137,11 +137,6 @@ class sinsp_utils
 
 	static void ts_to_iso_8601(uint64_t ts, OUT std::string* res);
 
-        // Limited version of iso 8601 time string parsing, that assumes a
-        // timezone of Z for UTC, but does support parsing fractional seconds,
-        // unlike get_epoch_utc_seconds_* below.
-	static bool parse_iso_8601_utc_string(const std::string& time_str, uint64_t &ns);
-
 	//
 	// Convert caps from their numeric representation to a space-separated string list
 	//