Removed unused variable 'i' in function `void Update()'.

git-svn-id: http://root.cern.ch/svn/root/trunk@20802 27541ba8-7e3a-0410-8455-c3a389f83636

tutorials/gui/CPUMeter.C

@@ -103,7 +103,7 @@ void Update()
    MemInfo_t memInfo;
    CpuInfo_t cpuInfo;
    Float_t act_load = 0.0;
-   Int_t i, memUsage = 0;
+   Int_t memUsage = 0;
 
    // Get CPU informations
    gSystem->GetCpuInfo(&cpuInfo, 100);