Caller interface clear memeber fix.

Author: dani007200964

src/Commander-Caller-Interface.hpp

@@ -74,7 +74,7 @@ class CommandCaller : public Stream{
     virtual void beep(){}
     virtual void setBannerText( const char* text_p ){}
     virtual void setPathText( const char* text_p ){}
-    virtual void clear( const char* text_p ){}
+    virtual void clear(){}
 
 private:
     Stream* channel = NULL;