fix collision retiming to never be in the future (#3599)

Author: Baezon

code/object/objcollide.cpp

@@ -604,10 +604,10 @@ void obj_reset_colliders()
 	Collision_cached_pairs.clear();
 }
 
-void obj_collide_retime_cached_pairs(int checkdly)
+void obj_collide_retime_cached_pairs()
 {
 	for ( auto& pair : Collision_cached_pairs ) {
-		pair.second.next_check_time = timestamp(checkdly);
+		pair.second.next_check_time = timestamp(0);
 	}
 }
 

code/object/objcollide.h

@@ -70,8 +70,8 @@ void obj_remove_collider(int obj_index);
 void obj_reset_colliders();
 void obj_sort_and_collide(SCP_vector<int>* Collision_list = nullptr);
 
-// retimes all collision pairs to be checked (in 25ms by default)
-void obj_collide_retime_cached_pairs(int checkdly=25);
+// retimes all collision pairs to be checked immediately
+void obj_collide_retime_cached_pairs();
 
 // Returns TRUE if the weapon will never hit the other object.
 // If it can it predicts how long until these two objects need