Deleting an element from 3d matrix java

Question

I have the following 3d matrix:

[0,1] | [0,2] | [1,0] | [1,1] | [1,2] | [2,0] | [2,1] | [2,2]
[0,0] | [0,2] | [1,0] | [1,1] | [1,2] | [2,0] | [2,1] | [2,2]
[0,0]