File fix-disable-self-update.patch of Package AppImageUpdate

diff -ruNp a/src/cli/main.cpp b/src/cli/main.cpp
--- a/src/cli/main.cpp
+++ b/src/cli/main.cpp
@@ -28,7 +28,6 @@ int main(const int argc, const char** ar
         {"overwriteOldFile", {"-O", "--overwrite"}, "Overwrite existing file. If not specified, a new file will be created, and the old one will remain untouched."},
         {"removeOldFile", {"-r", "--remove-old"}, "Remove old AppImage after successful update."},
         {"updateInfo", {"-u", "--update-info"}, "Manually override update information in the AppImage.", 1},
-        {"selfUpdate", {"--self-update"}, "Update this AppImage."},
     }};
 
     argagg::parser_results args;
@@ -66,33 +65,6 @@ int main(const int argc, const char** ar
         return optional<string>();
     }();
 
-    // if a self-update is requested, check whether the path argument has been passed, and show an error
-    // otherwise check whether path has been passed on the CLI, otherwise show file chooser
-    if (args["selfUpdate"]) {
-        if (pathToAppImage.has_value()) {
-            cerr << "Error: --self-update does not take a path." << endl;
-            showUsage();
-            return EXIT_FAILURE;
-        } else {
-            auto* APPIMAGE = getenv("APPIMAGE");
-
-            if (APPIMAGE == nullptr) {
-                cerr << "Error: self update requested but could not determine path to AppImage "
-                     << "($APPIMAGE environment variable missing)."
-                     << endl;
-                return 1;
-            }
-
-            if (!isFile(APPIMAGE)) {
-                cerr << "Error: $APPIMAGE pointing to non-existing file:\n"
-                     << APPIMAGE << endl;
-                return 1;
-            }
-
-            pathToAppImage = APPIMAGE;
-        }
-    }
-    
     if (!pathToAppImage.has_value()) {
         showUsage();
         return EXIT_FAILURE;
diff -ruNp a/src/qt-ui/main.cpp b/src/qt-ui/main.cpp
--- a/src/qt-ui/main.cpp
+++ b/src/qt-ui/main.cpp
@@ -41,9 +41,6 @@ int main(int argc, char** argv) {
     );
     parser.addOption(checkForUpdate);
 
-    QCommandLineOption selfUpdate("self-update", "Update the tool itself and exit.");
-    parser.addOption(selfUpdate);
-
     parser.addPositionalArgument("path", "Path to AppImage that should be updated", "<path>");
 
     QStringList arguments;
@@ -63,23 +60,6 @@ int main(int argc, char** argv) {
 
     appimage::update::qt::QtUpdater* updater;
 
-    // if a self-update is requested, check whether the path argument has been passed, and show an error
-    // otherwise check whether path has been passed on the CLI, otherwise show file chooser
-    if (parser.isSet(selfUpdate)) {
-        if (!parser.positionalArguments().empty()) {
-            cerr << "Error: --self-update does not take a path." << endl;
-            parser.showHelp(1);
-        } else {
-            updater = appimage::update::qt::QtUpdater::fromEnv();
-
-            if (updater == nullptr) {
-                cerr << "Error: self update requested but could not determine path to AppImage "
-                     << "($APPIMAGE environment variable missing)."
-                     << endl;
-                return 1;
-            }
-        }
-    } else {
         if (!parser.positionalArguments().empty()) {
             pathToAppImage = parser.positionalArguments().front();
         } else {
@@ -99,7 +79,6 @@ int main(int argc, char** argv) {
         pathToAppImage = QFileInfo(pathToAppImage).absoluteFilePath();
 
         updater = new appimage::update::qt::QtUpdater(pathToAppImage);
-    }
 
     if (parser.isSet(checkForUpdate))
         return updater->checkForUpdates(true);