interface: Remove obsolete method.

Now that all call sites have been converted to interface_create(), there
is no longer any needed for a way to set the interface's name.  This patch
removes the useless method.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>

interface.c

@@ -22,7 +22,7 @@ struct interface *interface_create(const char *name)
 	if (!iface) {
 		return NULL;
 	}
-	interface_set_name(iface, name);
+	strncpy(iface->name, name, MAX_IFNAME_SIZE);
 
 	return iface;
 }
@@ -64,11 +64,6 @@ void interface_set_label(struct interface *iface, const char *label)
 	strncpy(iface->ts_label, label, MAX_IFNAME_SIZE);
 }
 
-void interface_set_name(struct interface *iface, const char *name)
-{
-	strncpy(iface->name, name, MAX_IFNAME_SIZE);
-}
-
 bool interface_tsinfo_valid(struct interface *iface)
 {
 	return iface->ts_info.valid ? true : false;

interface.h

@@ -76,13 +76,6 @@ int interface_phc_index(struct interface *iface);
  */
 void interface_set_label(struct interface *iface, const char *label);
 
-/**
- * Set the name of a given interface.
- * @param iface  The interface of interest.
- * @param name   The desired name for the interface.
- */
-void interface_set_name(struct interface *iface, const char *name);
-
 /**
  * Tests whether an interface's time stamping information is valid or not.
  * @param iface  The interface of interest.