Remove `election_winner_details` container #2303

Job	Run time
Linux [UBSAN] [lmdb \| clang]	40m 47s
macOS [UBSAN] [lmdb \| clang]	42m 14s
Linux [ASAN] [lmdb \| clang]	42m 2s
Linux [ASAN_INT] [lmdb \| clang] (Errors Ignored)	42m 26s
macOS [ASAN] [lmdb \| clang]	35m 28s
Linux [TSAN] [lmdb \| clang]	43m 3s
macOS [TSAN] [lmdb \| clang]	34m 44s
macOS [UBSAN] [rocksdb \| clang]	42m 1s
Linux [LEAK] [lmdb \| clang] (Errors Ignored)	40m 49s
macOS [ASAN] [rocksdb \| clang]	45m 25s
Linux [UBSAN] [rocksdb \| clang]	51m 41s
macOS [TSAN] [rocksdb \| clang]	1h 2m 25s
Linux [ASAN] [rocksdb \| clang]	57m 49s
Linux [ASAN_INT] [rocksdb \| clang] (Errors Ignored)	58m 19s
Linux [LEAK] [rocksdb \| clang] (Errors Ignored)	56m 29s
	11h 35m 42s

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