lib/hashtable: remove superfluous check

We assign first_deleted = 0. There is no need to check its value without
any further assignment in between.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>

lib/hashtable.c

@@ -324,8 +324,7 @@ int hsearch_r(struct env_entry item, enum env_action action,
 		 */
 		unsigned hval2;
 
-		if (htab->table[idx].used == USED_DELETED
-		    && !first_deleted)
+		if (htab->table[idx].used == USED_DELETED)
 			first_deleted = idx;
 
 		ret = _compare_and_overwrite_entry(item, action, retval, htab,