nix

refactor: clean up `LedgerEntry.cpp` #4294

Job	Run time
dependencies (linux, gcc, Debug)	3m 18s
dependencies (linux, gcc, Release)	2m 20s
dependencies (linux, clang, Debug)	2m 53s
dependencies (linux, clang, Release)	2m 22s
coverage (linux, gcc, Debug)	13m 26s
test (linux, gcc, Debug)	11m 29s
test (linux, gcc, Debug, -Dunity=ON)	8m 7s
test (linux, gcc, Release)	12m 13s
conan	2m 56s
test (linux, gcc, Release, -Dunity=ON)	8m 10s
test (linux, clang, Debug)	9m 34s
test (linux, clang, Debug, -Dunity=ON)	6m 35s
test (linux, clang, Release)	11m 25s
test (linux, clang, Release, -Dunity=ON)	8m 48s
	1h 43m 36s

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