added request amb251

--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%40749

plugins/include/keyvalues.inc

@@ -192,6 +192,26 @@ native bool:KvJumpFirstSubKey(Handle:kv);
  */
 native bool:KvJumpNextSubKey(Handle:kv);
 
+/**
+ * Removes the given key from the current position.
+ *
+ * @param kv			KeyValues Handle.
+ * @param key			Name of the key.
+ * @return				True on success, false if key did not exist.
+ * @error				Invalid Handle.
+ */
+native bool:KvDeleteKey(Handle:kv, const String:key[]);
+
+/**
+ * Removes the current sub-key and jumps back one position, using the previous
+ * position as the search point.  This will not work if used on the root node.
+ *
+ * @param kv			KeyValues Handle.
+ * @return				True on success, false if there was no sub key.
+ * @error				Invalid Handle.
+ */
+native bool:KvDeleteThis(Handle:kv);
+
 /**
  * Jumps back to the previous position.  Returns false if there are no
  * previous positions (i.e., at the root node).  This should be called