symsync|example: cleaning up code somewhat
symsync|example: cleaning up code somewhat

  * creating/destroying objects as soon as necessary
  * computing noise standard deviation from SNRdB variable
  * removing commented block of code

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