Remove launchpad [duplicate]
An answer to a more recent question (about Mavericks) shows the operating system guarding against modification or deletion of Launchpad. Finder presents an alert.
Removal of Launchpad.app from OS X 10.9.5 does not remove Launchpad functionality. The following screenshots demonstrate Launchpad without Launchpad.app loading then presenting apps:
At least one core service includes references to /Applications/Launchpad.app so I should recommend not attempting to remove Launchpad.app or related software.