Amends the following compiler warnings:

 ```
 Display.c: In function ‘nxagentReconnectDisplay’:
 Display.c:2449:19: warning: variable ‘packQuality’ set but not used [-Wunused-but-set-variable]
    int packMethod, packQuality;
                    ^
 Display.c:2449:7: warning: variable ‘packMethod’ set but not used [-Wunused-but-set-variable]
    int packMethod, packQuality;
        ^
 ```