patch 7.4.1593

Problem:    Using channel timeout instead of request timeout. (Coverity)
Solution:   Remove the extra assignment.

src/version.c

@@ -748,6 +748,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1593,
 /**/
     1592,
 /**/