Removing array elements is easy.

If you want to remove the value without losing the slot, use delete. If you want to eleminate the slot and value together, use splice:

@a = qw( 0 1 2 3 4 5 6 )
# starting at position 2, delete 1 element
splice @a, 2, 1         
print join ",  ", @a
# generates the output :
0,  1,  3,  4,  5,  6
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splice() can do lots more ...see perldoc -f splice