That mainly depends on the contents of the clipping mask (what different kind of objects does it contain?).
It may be possible or not. Or just partiallly.
Can you share a sample .ai file?
Transparency Panel change blending mode to another eg multiply
Edit > Flatten transparency
and set balance to 100% vector
You could rasterize the file in Photoshop and then crop the image down to the clipping mask edges. You could also place the image into InDesign and only show the area desired. Both of these options are to get it to print now. It will not change the originating file.
If you have to edit the original, then I revert to Kurt's question about what is in the clipping mask?
1) In the Transparency palette/panel dropdown list select anything but Normal (Multiply is fine; this step may be unneeded in your version, you may try without it);
2) Object>Flatten Transparency, just keep the defaults including 100% Vector;
3) Shudder (optional, unless unavoidable).
This will crop everything to the Clipping Path (or to its Bounding Box in case of raster images), with the possible exception of some empty paths, remnants of the pattern tiles that have been cut to fit the Clipping Path, or something similar; if there are such paths, you may:
4) With the Direct Selection Tool, Click an empty spot to deselect, then ClickDrag along and outwards from each side of the former Clipping Path and press Delete (twice) to get (completely) rid of the empty paths;
With this, everything should be cleaned up.
As per the initial request, I assumed that "without altering the artwork inside the clipping mask" would be a crucial requirement …
Quite, Kurt, and I thought whether it was a literal requirement, or it might mean "without altering the appearance of the artwork inside the clipping mask", then decided to go for the latter.
I wonder how close we are to the equivalent of Love is not love which alters when it alteration finds.
Another thought: if the real issue is this,
"Can't move the objects. The requested transformation would make some objects fall completely off the drawing area."
rather than an actual need for deletion of invisible parts, the issue may be caused by something that may be found far away from the Clipping Mask and easily dealt with. Ctrl/Cmd+A may give a clue. There may also be something related to Guides, I believe.
Great assumption, Kurt. You should be a detective!
Thanks for the help, Ray and Jacob. The Flatten Transparency option worked the best!
For my part you are welcome, Jerome.
Referring to Kurt the detective, on closer inspection you may find that there are alterations to your artwork (such as outlining of stroked paths, destroying/turning them into filled paths).
Lol yeah, I noticed.
That's fine though; for this particular artwork, it doesn't matter if the paths are filled or not.
My real name is John Steed.
At least British people may remember me.
I thought it was meant to be a secret, John.
Anything outside the mask is secret, but not my real name, Dr. King.
(Mrs Peel told me that King is your real name)