Resolve compiler warnings

DownloadDCFirmware/DownloadDCFirmware.pro

@@ -98,9 +98,6 @@ OTHER_FILES += \
     ../ATBUpdateTool.ini
 
 
-FORMS += \
-    mainwindow.ui
-
 ##########################################################################################
 # for running program on target through QtCreator
 contains( CONFIG, PTU5 ) {

UpdatePTUDevCtrl/git/git_client.cpp

@@ -405,7 +405,7 @@ std::optional<QString> GitClient::gitPull() {
         export GIT_SSH_COMMAND="ssh -i /opt/app/tools/atbupdate/.keys/id_ed25519_ptuConfig -o StrictHostKeyChecking=no"
 
         ... or use separate known_hosts file:
-        export GIT_SSH_COMMAND="ssh -i /mypath/.keys/id_ed25519 -o StrictHostKeyChecking=yes -o UserKnownHostsFile=/opt/app/tools/atbupdate/.keys/known_hosts
+        export GIT_SSH_COMMAND="ssh -i /mypath/.keys/id_ed25519 -o StrictHostKeyChecking=yes -o UserKnownHostsFile=/opt/app/tools/atbupdate/.keys/known_hosts"
         git pull
 
         leads to the following warning/error message:

UpdatePTUDevCtrl/utils.cpp

@@ -178,6 +178,9 @@ QString Utils::zoneName(quint8 i) {
     //if (i < (sizeof(zName)/sizeof(char const *))) {
     //    return zName[i];
     //}
+
+    Q_UNUSED(i)
+
     return "---";
 }