Remove warning and Custom menuContext

Sources/tools/Display/Display.cpp

@@ -246,7 +246,6 @@ void DrawerManager::Text(color_ts & SelectColorFg, color_ts & SelectColorBg, int
 	cairo_set_font_face(m_cairo, Display::GetFont(false, false));
 	int32_t letterHeight = Display::GetFontHeight();
 	int32_t letterWidth = Display::GetFontWidth();
-	int32_t stringLen = strUtf8Len(myText);
 	DirectRectangle(SelectColorBg, x, y, letterWidth*strlen(myText), letterHeight);
 	cairo_fill(m_cairo);
 	cairo_move_to(m_cairo, x, y+letterHeight-4);

Sources/tools/charset/charset.cpp

@@ -301,6 +301,7 @@ void Utf8_SizeElement(const char * data, int32_t lenMax , uint8_t &size, bool &b
 	}
 }
 
+#if 0 // Remove for the moment ...
 /**
  * @brief Get the number of element of the previous UTF8 char (in the curent Buffer) 
  *
@@ -349,7 +350,7 @@ static void Utf8_SizePreviousElement(const char * data, int32_t lenMax, uint8_t
 		size = 1;
 	}
 }
-
+#endif
 
 /**
  * @brief