update dnf add repo syntax

install-stuff/install-rust.sh

@@ -7,7 +7,6 @@ fi
 command_exists() { type "$1" &>/dev/null; }
 
 if command_exists "yum"; then
-    sudo dnf config-manager --add-repo https://askiiart.net/repos/fedora/x86_64/askiiart.repo
     sudo dnf install rustup -y
     fish -c "rustup-init"
 elif command_exists "rpm-ostree"; then
@@ -20,4 +19,4 @@ else
     echo "figure out rustup yourself"
     echo "enter to continue"
     read -p ""
-fi
+fi