No. You’ll just have a static animation.
How to delete an animation depends a little on what you animated.
If it was an armature you could select the armature and then go to an Action window and select and delete all the keys you see there. Deleting the “Action” takes a little more effort and might not really matter anyway at this stage.
If it was shape keys you can select the mesh then again, select and delete the keys in the Action window.
If it was an object trasform (location, rotation, scale) then you can select the object, open an IPO window and select and delete all the IPO curves.