fixup! Clean up unused return type

Source/init.cpp

@@ -174,20 +174,13 @@ void init_get_file_info()
 void MainWndProc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
 {
 	switch (Msg) {
-	case DVL_WM_ERASEBKGND:
-		return 0;
 	case DVL_WM_PAINT:
 		force_redraw = 255;
 		break;
-	case DVL_WM_CLOSE:
-		return 0;
-	case DVL_WM_QUERYNEWPALETTE:
-		return 1;
 	case DVL_WM_QUERYENDSESSION:
 		diablo_quit(0);
+		break;
 	}
-
-	return 0;
 }
 
 WNDPROC SetWindowProc(WNDPROC NewProc)

SourceS/miniwin/misc.h

@@ -90,10 +90,7 @@ bool PostMessage(UINT Msg, WPARAM wParam, LPARAM lParam);
 #define DVL_WM_CAPTURECHANGED 0x0215
 
 #define DVL_WM_PAINT 0x000F
-#define DVL_WM_CLOSE 0x0010
 #define DVL_WM_QUERYENDSESSION 0x0011
-#define DVL_WM_ERASEBKGND 0x0014
-#define DVL_WM_QUERYNEWPALETTE 0x030F
 
 #define DVL_SC_CLOSE 0xF060