Bug #86: Deletion of unnecessary checks before calls of the function "free"

The function "free" is documented in the way that no action shall occur for
a passed null pointer. It is therefore not needed that a function caller
repeats a corresponding check.
http://stackoverflow.com/questions/18775608/free-a-null-pointer-anyway-or-check-first

This issue was fixed by using the software "Coccinelle 1.0.4".

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
diff --git a/libasn1fix/asn1fix_tags.c b/libasn1fix/asn1fix_tags.c
index db4d4ed..d57e37e 100644
--- a/libasn1fix/asn1fix_tags.c
+++ b/libasn1fix/asn1fix_tags.c
@@ -166,7 +166,7 @@
 	arg.expr = expr;
 
 	count = asn1f_fetch_tags_impl(&arg, &tags, 0, 0, flags);
-	if(count <= 0 && tags) {
+	if (count <= 0) {
 		free(tags);
 		tags = 0;
 	}