Hi Heshie,
Parallels Desktop does not create Windows partition when you create a standalone virtual machine.
Your VM is a single .pvm file located at /Documents/Parallels by default.
You can remove it with
http://kb.parallels.com/5029
If you need assistance with removing BootCamp partition, please check the link given below :
https://discussions.apple.com/message/23846100#23846100
Thanks,
Maheeshwar