patch 8.2.4518: the binary tag search feature is always enabled

Problem:    The binary tag search feature is always enabled.
Solution:   Remove the #ifdefs.  Add a few more tests. (Yegappan Lakshmanan,
            closes #9893)
diff --git a/src/version.c b/src/version.c
index 5e7d570..771530a 100644
--- a/src/version.c
+++ b/src/version.c
@@ -590,11 +590,7 @@
 #if defined(USE_SYSTEM) && defined(UNIX)
 	"+system()",
 #endif
-#ifdef FEAT_TAG_BINS
 	"+tag_binary",
-#else
-	"-tag_binary",
-#endif
 	"-tag_old_static",
 	"-tag_any_white",
 #ifdef FEAT_TCL
@@ -755,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4518,
+/**/
     4517,
 /**/
     4516,