For many environments, securing OS X is basically trying to make the computer act more like an iOS device. Some of the easier tasks involve disabling access to certain apps, sandboxing and controlling access to certain features. One of the steps en route to building an iOS-esque environment in OS X is to disable that Go to Folder… option. To do so, set the ProhibitGoToFolder key as true in com.apple.finder:
defaults write com.apple.finder ProhibitGoToFolder -bool true
Then reboot, or kill the Finder:
killall Finder
To undo, set the ProhibitGoToFolder as false:
defaults write com.apple.finder ProhibitGoToFolder -bool false