Removed duplicates, re-arranged

Containerfile

@@ -38,14 +38,13 @@ RUN wget https://github.com/docker/compose/releases/latest/download/docker-compo
 RUN systemctl enable docker.socket && \
     systemctl enable podman.socket
 
-RUN rpm-ostree install -y java-17-openjdk && \
-    mkdir minecraftforge && \
+RUN mkdir minecraftforge && \
     cd minecraftforge && \
     wget "https://maven.minecraftforge.net/net/minecraftforge/forge/1.19-41.1.0/forge-1.19-41.1.0-mdk.zip" -O temp.zip && \
     unzip temp.zip && \
     rm temp.zip
 
 RUN [ "$FLATPAKS_INSTALL" = "true" ] && flatpak remote-add --installation=image --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo && \
-  flatpak install --installation=image -y org.mozilla.firefox net.sonic_pi.SonicPi edu.mit.Scratch flatpak install org.eclipse.Java
+  flatpak install --installation=image -y org.mozilla.firefox net.sonic_pi.SonicPi edu.mit.Scratch org.eclipse.Java
 RUN rm -fr /tmp/* /var/* \
     && ostree container commit