Resetting the flag to be able to generate an unsigned IPA iOS application. Because doing that manually after each Xcode update sucks.

code_signing.not_required.sh

#!/bin/bash

sdkFolder="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/"
sdkPlist="SDKSettings.plist"

cp ${sdkFolder}${sdkPlist} . && \
/usr/libexec/PlistBuddy -c "Set DefaultProperties:CODE_SIGNING_REQUIRED NO" ./${sdkPlist} && \
sudo mv ${sdkPlist} ${sdkFolder}