Copter: remove redundant filter status checks

ArduCopter/control_auto.pde

@@ -20,7 +20,7 @@
 // auto_init - initialise auto controller
 static bool auto_init(bool ignore_checks)
 {
-    if ((position_ok() && inertial_nav.get_filter_status().flags.horiz_pos_abs && mission.num_commands() > 1) || ignore_checks) {
+    if ((position_ok() && mission.num_commands() > 1) || ignore_checks) {
         auto_mode = Auto_Loiter;
 
         // stop ROI from carrying over from previous runs of the mission

ArduCopter/control_circle.pde

@@ -7,7 +7,7 @@
 // circle_init - initialise circle controller flight mode
 static bool circle_init(bool ignore_checks)
 {
-    if ((position_ok() && inertial_nav.get_filter_status().flags.horiz_pos_abs) || ignore_checks) {
+    if (position_ok() || ignore_checks) {
         circle_pilot_yaw_override = false;
 
         // initialize speeds and accelerations