Originally Posted by Statikk

Anyway I have a solution for you but it involves Rooting the phone and using Titanium Backup Root.. I did this on my Dell Streak Froyo 2.2

Root the Phone and get Titanium Backup Root on your device and Open it. Then do the following.
1) Go to Backup Restore Option and find the following entries
Calendar 2.2
[CALENDAR] Calendar Storage 2.2
Calendar Sync Adapter 2.2.1
2) Tap on the last entry "Calendar Sync Adapter 2.2.1" and when the options come up simply select "Backup" (just in case) and then select the "Freeze!" option.
DONE! No more sync of calendar

Hope this was helpful!!