Why do you want to remove it?
Do you realize that if you corrupt the installation by fooling with the files (e.g., deleting or renaming) that the updater most likely won't work right when the next update is released, because it will think the installation is incomplete or corrupted?
I believe it can slow down the opening and saving of files, it's looking for watermarks. Shouldn't be part of installation. Have removed it from other versions in the past. It was in plugins folder, which doesn't seem to exist anymore. Has nothing to do with installation.
It makes no measurable difference in time to open a file whether that plug-in is active or not.
But Howard, if you insist on making that change, just remember to check back here when you get your next update that fails to install with a cryptic error message. We'll be happy to remind you again that removing or renaming files that are part of the Photoshop installation package is a bad idea.
Noel- cs6 is a bit slower than cs5 opening and saving files. Since I have 16 gb ram available and it's using over 10gb, I thought this might be an issue. Shouldn't the use of the extra ram make things go a bit faster? Opened the same files with both versions.
Feel free to experiment with temporarily renaming the plug-in files (put a ~ in front of the name to have them be skipped during enumeration).
I tried just that and I found no difference in speed - none.
What OS are you running? What are your scratch drive assignments?
For what it's worth with Windows 7 x64 I found Photoshop CS6 file operations slightly faster than Photoshop CS5, but every system is different.