stats: remove unsupported_methods statistic

Removing the statistic as it is not reliable, due to the fact that
the term "unsupported_methods" is quite generic and does not reflect
the actual methods supported by OpenSIPS' script.
Reported by Ben Newlin (@bcnewlin) in Ticket OpenSIPS#2460

Author: razvancrainea

core_stats.c

@@ -55,7 +55,6 @@ stat_var* drp_rpls;
 stat_var* err_reqs;
 stat_var* err_rpls;
 stat_var* bad_URIs;
-stat_var* unsupported_methods;
 stat_var* bad_msg_hdr;
 stat_var* slow_msgs;
 
@@ -70,7 +69,6 @@ stat_export_t core_stats[] = {
 	{"err_requests" ,         0,  &err_reqs              },
 	{"err_replies" ,          0,  &err_rpls              },
 	{"bad_URIs_rcvd",         0,  &bad_URIs              },
-	{"unsupported_methods",   0,  &unsupported_methods   },
 	{"bad_msg_hdr",           0,  &bad_msg_hdr           },
 	{"slow_messages" ,        0,  &slow_msgs             },
 	{"timestamp",  STAT_IS_FUNC, (stat_var**)get_ticks   },

core_stats.h

@@ -68,9 +68,6 @@ extern stat_var* err_rpls;
 /*! \brief Set in parse_uri() */
 extern stat_var* bad_URIs;
 
-/*! \brief Set in parse_method() */
-extern stat_var* unsupported_methods;
-
 /*! \brief Set in get_hdr_field(). */
 extern stat_var* bad_msg_hdr;
 

parser/parse_methods.c

@@ -301,7 +301,6 @@ char* parse_method(char* start, char* end, unsigned int* method)
 	return (start+len);
 
 unknown:
-	update_stat(unsupported_methods, 1);
 	*method = METHOD_OTHER;
 	if(end)
 	{