How to remove all the polylines from a map

Question

Following

How to draw a path between two markers

I had to add lot of polylines between two markers, to make a path.

One of the markers is draggable,

Answer 1

Update

If you want to removes all markers, polylines, polygons, overlays, etc from the map use

mMap.clear(); //it will remove all additional objects from map 

and if you only want to remove all or single polyline, polygon, marker etc see @DiskDev Answer above. In this case you must keep track of every single additional object you add to map