I'm actually curious on the reverse. What programs did the GOP start that were cancelled by the Dems? Note I'm a biased liberal, so potentially the reversals might've been propagandized to me as lifting restrictions or some other such political language and I might be unaware of the actual policies.
A couple of examples would be reduction of some of the Reagan-era defense spending under the Clinton administration, and partial rollback of some of the Reagan-era tax cuts under the Clinton administration.
Of course these were not complete elimination of programs, but adjustments. And you could argue that there were other reasons besides partisanship, like the end of the Cold War and budgetary issues.