delete buffer content from the point

[Luca Ferrari]

Is there a short and sweet way to kill the content of the current
buffer from the point to the end of the buffer itself?
I do often duplicate files and adjusts the header part, then I do
'C-k' until the part of the file I want to delete has disappeared, but
this has the drawback of being slow and inserting a wall of text into
the kill ring.

Thanks,
Luca