remove unused variable.

git-svn-id: http://root.cern.ch/svn/root/trunk@42704 27541ba8-7e3a-0410-8455-c3a389f83636

test/Hello.h

@@ -31,8 +31,6 @@ public:
    virtual ~TChar() { }
 
    char GetChar() {
-      char *tmp;
-      tmp = (char*)GetTitle();
       return GetTitle()[0];
    }