So where in the statement does it say he will not go??
See
http://news.bbc.co.uk/1/hi/uk/6663347.stm for the text
Prince Harry will not deploy as a troop leader with his squadron
and
he will not be deploying with his troop
To me it does not say he will not go - it says he will not go with this troop.
I bet he will turn up in a "safe" role.