channel/example: cleaning up symtrack example (trivial)
channel/example: cleaning up symtrack example (trivial)

andrepuschmann/liquid-dsp,JayKickliter/liquid-dsp,wangning223/liquid-dsp,jgaeddert/liquid-dsp,wangning223/liquid-dsp,JayKickliter/liquid-dsp,wangning223/liquid-dsp,biotrump/liquid-dsp,JayKickliter/liquid-dsp,biotrump/liquid-dsp,cjcliffe/liquid-dsp,wangning223/liquid-dsp,andrepuschmann/liquid-dsp,biotrump/liquid-dsp,andrepuschmann/liquid-dsp,jgaeddert/liquid-dsp,biotrump/liquid-dsp,andrepuschmann/liquid-dsp,wangning223/liquid-dsp,biotrump/liquid-dsp,cjcliffe/liquid-dsp,JayKickliter/liquid-dsp,JayKickliter/liquid-dsp,jgaeddert/liquid-dsp,jgaeddert/liquid-dsp,cjcliffe/liquid-dsp,jgaeddert/liquid-dsp,cjcliffe/liquid-dsp,cjcliffe/liquid-dsp,andrepuschmann/liquid-dsp