Resolve "Robust remove() API"

implementing #239 (closed)

src/frame/frame_base.cpp

@@ -114,10 +114,6 @@ void FrameBase::remove()
         if ( isKeyOrAux() )
             removeStateBlocks();
 
-
-        if (getTrajectory()->getLastKeyFrame()->id() == this_F->id() || getTrajectory()->getLastKeyOrAuxFrame()->id() == this_F->id())
-            getTrajectory()->updateLastFrames();
-
 //        std::cout << "Removed       F" << id() << std::endl;
     }
 }