patch 9.0.0878: Coverity warns for dead code

Problem:    Coverity warns for dead code.
Solution:   Remove the dead code.
diff --git a/src/version.c b/src/version.c
index a764712..f294ed5 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    878,
+/**/
     877,
 /**/
     876,