patch 8.0.1794: duplicate term options after renaming

Problem:    Duplicate term options after renaming.
Solution:   Remove the old names 'termkey', 'termsize' and 'terminalscroll'.
diff --git a/src/version.c b/src/version.c
index e4fa0c5..a73c485 100644
--- a/src/version.c
+++ b/src/version.c
@@ -762,6 +762,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1794,
+/**/
     1793,
 /**/
     1792,