Cleanup: Get rid of duplicate getChannelName()

Get rid of duplicate getChannelName function. Use
the one with uint8_t channelNum.

Tested-by:
1. Verified RMCP+ session establishement works with newly
created user

Change-Id: Iac22ec665ece97d4f9471cfb40220b472bdf01e8
Signed-off-by: Richard Marian Thomaiyar <richard.marian.thomaiyar@linux.intel.com>
diff --git a/user_channel/channel_layer.hpp b/user_channel/channel_layer.hpp
index 3a172bc..5c82fba 100644
--- a/user_channel/channel_layer.hpp
+++ b/user_channel/channel_layer.hpp
@@ -328,6 +328,6 @@
  *
  *  @return the LAN channel name (i.e. eth0)
  */
-std::string getChannelName(const int chNum);
+std::string getChannelName(const uint8_t chNum);
 
 } // namespace ipmi