patch 8.0.1785: missing symbol in Win32 small build
Problem: Missing symbol in Win32 small build.
Solution: Define VTERM_ANSI_INDEX_NONE without the terminal feature. Also
fix unused function with #ifdef.
diff --git a/src/term.c b/src/term.c
index d2a6e45..08eee67 100644
--- a/src/term.c
+++ b/src/term.c
@@ -6977,6 +6977,8 @@
# ifdef FEAT_TERMINAL
# include "libvterm/include/vterm.h" // for VTERM_ANSI_INDEX_NONE
+# else
+# define VTERM_ANSI_INDEX_NONE 0
# endif
static uint8_t ansi_table[16][4] = {