Added --ignore-missing flag to some installations.

scripts/removal

@@ -66,7 +66,7 @@ This script will remove wireshark, python 2.7, and python 3 from your machine."
                     [Nn]* ) exit;;
                 esac
             done
-            sudo dnf -y remove wireshark
+            sudo dnf -y remove wireshark --ignore-missing
             echo "Removal finished."
             exit
             ;;
@@ -81,7 +81,7 @@ This script will remove ruby, eclipse, Spin, sqlite3 and MIT Alloy from your mac
                     [Nn]* ) exit;;
                 esac
             done
-            sudo dnf -y remove eclipse-jdt ruby sqlite gitk plantuml
+            sudo dnf -y remove eclipse-jdt ruby sqlite gitk plantuml --ignore-missing
             bash /usr/local/bin/se/spin.sh --remove       
             bash /usr/local/bin/se/alloy.sh --remove
             echo "Removal finished."