You must use a downward loop

go-delete-slice-elements-in-loop.go

// http://stackoverflow.com/questions/29005825/how-to-remove-element-of-struct-array-in-loop-in-golang

package main

func correctDeletion() {
	var array [10]int
	for i, _ := range array {
		array[i] = i
	}
	s := array[:]

	for i := len(s) - 1; i >= 0; i-- {
		v := s[i]
		println("iterated:", v)
		if v == 5 {
			s = append(s[:i], s[i+1:]...)
		}
	}
}

func wrongDeletion() {
	var array [10]int
	for i, _ := range array {
		array[i] = i
	}

	s := array[:]

	for i, v := range s {
		println("iterated:", v)
		if v == 5 {
			s = append(s[:i], s[i+1:]...)
		}
	}
}

func main() {
	println("===== Correct! =====")
	correctDeletion()
	println()
	println("===== Wrong! =====")
	wrongDeletion()
}

Very useful, thank you for sharing!