do not reset on plan

users can reset explicitly as needed.
Reset sends ROS messages and prevents { plan(1); plan(1) } style usage.

Author: v4hn

core/src/task.cpp

@@ -292,7 +292,6 @@ void Task::compute() {
 
 bool Task::plan(size_t max_solutions) {
 	auto impl = pimpl();
-	reset();
 	init();
 
 	impl->preempt_requested_ = false;