Small fixes.

MicroDexed.ino

@@ -2052,8 +2052,10 @@ void set_fx_params(void)
   freeverb.damping(mapfloat(configuration.fx.reverb_damping, REVERB_DAMPING_MIN, REVERB_DAMPING_MAX, 0.0, 1.0));
 #endif
 
+#ifdef NUM_DRUMS
   reverb_mixer_r.gain(4, 1.0);
   reverb_mixer_l.gain(4, 1.0);
+#endif
 
   master_mixer_r.gain(3, pseudo_log_curve(mapfloat(configuration.fx.reverb_level, REVERB_LEVEL_MIN, REVERB_LEVEL_MAX, 0.0, 1.0)));
   master_mixer_l.gain(3, pseudo_log_curve(mapfloat(configuration.fx.reverb_level, REVERB_LEVEL_MIN, REVERB_LEVEL_MAX, 0.0, 1.0)));

UI.hpp

@@ -39,7 +39,6 @@
 #include "synth_dexed.h"
 
 #include <LCDMenuLib2.h>
-//#include <Encoder.h>
 #include <MD_REncoder.h>
 
 #define _LCDML_DISP_cols  LCD_cols