Remove `election_winner_details` container #2306

Job	Run time
Linux [UBSAN] [lmdb \| clang]	42m 34s
macOS [UBSAN] [lmdb \| clang]	35m 52s
Linux [ASAN] [lmdb \| clang]	42m 24s
macOS [ASAN] [lmdb \| clang]	28m 32s
Linux [ASAN_INT] [lmdb \| clang] (Errors Ignored)	43m 40s
macOS [TSAN] [lmdb \| clang]	33m 33s
Linux [TSAN] [lmdb \| clang]	43m 53s
macOS [UBSAN] [rocksdb \| clang]	46m 11s
Linux [LEAK] [lmdb \| clang] (Errors Ignored)	42m 6s
macOS [ASAN] [rocksdb \| clang]	45m 1s
Linux [UBSAN] [rocksdb \| clang]	50m 59s
macOS [TSAN] [rocksdb \| clang]	54m 11s
Linux [ASAN] [rocksdb \| clang]	59m 6s
Linux [ASAN_INT] [rocksdb \| clang] (Errors Ignored)	56m 22s
Linux [LEAK] [rocksdb \| clang] (Errors Ignored)	59m 31s
	11h 23m 55s

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