Don't delete
com.apple.fairplayd.plist - Checks the DRM for you music and apps.
com.apple.installd.plist- Installs apps.
com.apple.configd+pm.plist - This daemon has something to do with system configuration.
com.apple.configd-pm.cplist - Same as above.
com.apple.gmmd.plist - Deals with debugging.
com.apple.mDNSResponder.plist - This daemon deals with DNS. Deleting this will cause you internet to cease.
com.apple.mDNSResponderHelper.plist - Same as above.
com.apple.usbptpd - Deals with charging and connecting to you computer.
com.apple.mtmergeprops.plist - You touchscreen will be very unresponsive if you delete this.
com.apple.SCHelper-embedded.plist - Deals with system configuration.
com.apple.SpringBoard.plist - Deals with the SpringBoard/homescreen.
com.apple.mobile.lockbot.plist - Your device won't work if you delete this. It is unknown what this daemon does.
com.apple.mobile.Lockdown.plist - This daemon deals with network authorization.
com.apple.itdbprep.plist - Helps sync music and videos.
com.apple.itunesstored.plist - If you delete this, your device will be really, really hot and the battery will drain.
com.apple.mediaserverd.plist - Deleting this will make your device seriously unresponsive and slow.
com.apple.UIKit.pasteboard.plist - This daemon deals with copying and pasting.
com.apple.hpfd.plist - Deals with removing and installing.
com.apple.cvmsCompAgent_armv7.plist - Your device will become unresponsive and unusable if you delete this.
com.apple.cvmsServ.plist - Same as above.
com.apple.powerd.plist - You won't be able to turn on your device if you delete this.
com.apple.backupd.plist - You won't be able to sync with iTunes if you delete this daemon
com.apple.installd.plist- Installs apps.
com.apple.configd+pm.plist - This daemon has something to do with system configuration.
com.apple.configd-pm.cplist - Same as above.
com.apple.gmmd.plist - Deals with debugging.
com.apple.mDNSResponder.plist - This daemon deals with DNS. Deleting this will cause you internet to cease.
com.apple.mDNSResponderHelper.plist - Same as above.
com.apple.usbptpd - Deals with charging and connecting to you computer.
com.apple.mtmergeprops.plist - You touchscreen will be very unresponsive if you delete this.
com.apple.SCHelper-embedded.plist - Deals with system configuration.
com.apple.SpringBoard.plist - Deals with the SpringBoard/homescreen.
com.apple.mobile.lockbot.plist - Your device won't work if you delete this. It is unknown what this daemon does.
com.apple.mobile.Lockdown.plist - This daemon deals with network authorization.
com.apple.itdbprep.plist - Helps sync music and videos.
com.apple.itunesstored.plist - If you delete this, your device will be really, really hot and the battery will drain.
com.apple.mediaserverd.plist - Deleting this will make your device seriously unresponsive and slow.
com.apple.UIKit.pasteboard.plist - This daemon deals with copying and pasting.
com.apple.hpfd.plist - Deals with removing and installing.
com.apple.cvmsCompAgent_armv7.plist - Your device will become unresponsive and unusable if you delete this.
com.apple.cvmsServ.plist - Same as above.
com.apple.powerd.plist - You won't be able to turn on your device if you delete this.
com.apple.backupd.plist - You won't be able to sync with iTunes if you delete this daemon