patch 8.2.4273: the EBCDIC support is outdated

Problem:    The EBCDIC support is outdated.
Solution:   Remove the EBCDIC support.
diff --git a/src/version.c b/src/version.c
index 2d113b8..4c9c594 100644
--- a/src/version.c
+++ b/src/version.c
@@ -231,11 +231,7 @@
 #else
 	"-dnd",
 #endif
-#ifdef EBCDIC
-	"+ebcdic",
-#else
 	"-ebcdic",
-#endif
 #ifdef FEAT_EMACS_TAGS
 	"+emacs_tags",
 #else
@@ -751,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4273,
+/**/
     4272,
 /**/
     4271,