Cleanup: remove DRAW_STRING_BUFFER constant

src/gfx_func.h

@@ -82,9 +82,6 @@ void GameSizeChanged();
 bool AdjustGUIZoom(bool automatic);
 void UndrawMouseCursor();
 
-/** Size of the buffer used for drawing strings. */
-static const int DRAW_STRING_BUFFER = 2048;
-
 void RedrawScreenRect(int left, int top, int right, int bottom);
 void GfxScroll(int left, int top, int width, int height, int xo, int yo);
 

src/network/network_chat_gui.cpp

@@ -30,10 +30,6 @@
 
 #include "../safeguards.h"
 
-/** The draw buffer must be able to contain the chat message, client name and the "[All]" message,
- * some spaces and possible translations of [All] to other languages. */
-static_assert((int)DRAW_STRING_BUFFER >= (int)NETWORK_CHAT_LENGTH + NETWORK_NAME_LENGTH + 40);
-
 /** Spacing between chat lines. */
 static const uint NETWORK_CHAT_LINE_SPACING = 3;