Avoid warning CS0168 (variable is declared, but never used)  and CS0219 (variable is assigned, but its value is never used) on Mono.
Avoid warning CS0168 (variable is declared, but never used) 
and CS0219 (variable is assigned, but its value is never used) on Mono.


git-svn-id: 223c0ba935819ffdcafdc68147dc609b4e469b1e@332749 13f79535-47bb-0310-9956-ffa450edef68

harold4/log4net,drunkirishcoder/monotouch-log4net,StevenJiang2015/log4net,drunkirishcoder/monotouch-log4net,amtkmrsmn/log4net,drunkirishcoder/monotouch-log4net,Dagwaging/log4net,StevenJiang2015/log4net,modulexcite/log4net,Dagwaging/log4net,harold4/log4net,Dagwaging/log4net,amtkmrsmn/log4net,modulexcite/log4net,StevenJiang2015/log4net,modulexcite/log4net,drunkirishcoder/monotouch-log4net,amtkmrsmn/log4net,harold4/log4net