patch 9.1.0767: A condition is always true in ex_getln.c

Problem:  A cmdlen == 0 condition is always true as ccline.cmdlen == 0
          was already checked above (after v9.1.0766).
Solution: Remove the condition and the variable.
          (zeertzjq)

closes: #15830

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

src/version.c

@@ -704,6 +704,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    767,
 /**/
     766,
 /**/