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

.gitmodules

@@ -14,6 +14,4 @@
 [submodule "plugins/zsh-syntax-highlighting"]
 	path = plugins/zsh-syntax-highlighting
 	url = https://github.com/zsh-users/zsh-syntax-highlighting.git
-[submodule "plugins/gradle-completion"]
-	path = plugins/gradle-completion
-	url = https://github.com/gradle/gradle-completion
+