I almost can't believe that at one point, i actually believed that world governments would destroy organized religion. It truly is a pathetic idea. Organized religion is imploding on it's own, no help will be needed, believe me.
Besides why would governments do this? What a tremendously unpopular idea that would be... political suicide.
In the United States for example, there would need to be a switch to a dictatorship, abolishment or suspension of the constitution. This move would inevitably lead to a civil war, and nationwide rioting and unrest, in a nation which is the most relgious of all developed nations.
No government would fight this war, in order to get rid of something which is not a threat in any way, but instead actually helps keep people in line.