Eliminate dead code to placate GCC 7's -Wformat-truncation.

src/terminal/parseraction.cc

@@ -38,19 +38,6 @@
 
 using namespace Parser;
 
-std::string Action::str( void )
-{
-  char thechar[ 10 ] = { 0 };
-  if ( char_present ) {
-    if ( iswprint( ch ) )
-      snprintf( thechar, 10, "(%lc)", static_cast<wint_t>(ch) );
-    else
-      snprintf( thechar, 10, "(0x%x)", static_cast<unsigned int>(ch) );
-  }
-
-  return name() + std::string( thechar );
-}
-
 void Print::act_on_terminal( Terminal::Emulator *emu ) const
 {
   emu->print( this );

src/terminal/parseraction.h

@@ -47,8 +47,6 @@ namespace Parser {
     wchar_t ch;
     bool char_present;
 
-    std::string str( void );
-
     virtual std::string name( void ) = 0;
 
     virtual void act_on_terminal( Terminal::Emulator * ) const {};