removes fixMacPortableKeyboard - dont use a mac anymore

removes kew.plugins.txt - no k8s cluster
removes setupHelm.sh - no k8s cluster
removes setupKotlin.sh - not writing kotlin atm
removes setupKubectl.sh - no k8s cluster
removes gradle-completion - not writing kotlin

scripts/installPackages.sh

@@ -4,4 +4,4 @@
  sudo apt install \
     remmina remmina-plugin-vnc remmina-plugin-rdp \
     zsh zsh-syntax-highlighting \
-    nmap tmux nmon htop sccache -y
+    nmap tmux nmon htop -y