remove unimplemented stop()

effect_chorus.h

 
   boolean begin(short *delayline,int delay_length,int n_chorus);
   virtual void update(void);
-  void stop(void);
   void voices(int n_chorus);
   
 private:

effect_flange.h

   boolean begin(short *delayline,int d_length,int delay_offset,int d_depth,float delay_rate);
   boolean voices(int delay_offset,int d_depth,float delay_rate);
   virtual void update(void);
-  void stop(void);
   
 private:
   audio_block_t *inputQueueArray[1];

gui/list.html

 	the original voice (so, 2 and up to get a chorus effect, although you can 
 	specify 1 if you want).
 	</p>
-	<p class=func><span class=keyword>stop</span>();</p>
-	<p class=desc>Stops the chorus effect. Audio is still passed through. To restart, 
-	call begin (you must re-specify the chorus parameters).
-	</p>
 	<p class=func><span class=keyword>modify</span>(n_chorus);</p>
 	<p class=desc>Alters the number of voices in a running chorus (previously started with begin).
 	</p>
 	<p class=func><span class=keyword>modify</span>(offset, depth, delayRate);</p>
 	<p class=desc>Alters the parameters in a running flanger (previously started with begin).
 	</p>
-	<p class=func><span class=keyword>stop</span>();</p>
-	<p class=desc>Stops the flanging effect. Audio is still passed through. To restart, 
-	call begin (you must re-specify the flanger parameters).
-	</p>
 
 	<h3>Notes</h3>
 	<p>The longer the length of the delay buffer, the more memory blocks are used.</p>