Revert "remove test-only bool arg from calculate_fee (#3211)" (#3367) #6279

Job	Run time
android (ubuntu-20.04, x86_64-linux-android)	2m 53s
ios (macos-13, aarch64-apple-ios)	3m 28s
android (ubuntu-20.04, aarch64-linux-android)	2m 51s
ios (macos-13, x86_64-apple-ios)	4m 10s
android (ubuntu-20.04, i686-linux-android)	2m 47s
ios (macos-13, aarch64-apple-darwin)	4m 31s
android (ubuntu-20.04, armv7-linux-androideabi)	3m 1s
ios (macos-13, x86_64-apple-darwin)	3m 30s
error_reporting	0s
	27m 11s

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