Removed unnecessary std::move, fixes #533 #335

Job	Run time
windows-msvc-shared (CBOR)	8m 8s
windows-msvc-shared (AVRO)	6m 47s
windows-msvc-shared (JSON)	10m 24s
windows-msvc-shared (CAPNPROTO)	7m 51s
windows-msvc-shared (FLEXBUFFERS)	5m 39s
windows-msvc-shared (MSGPACK)	3m 43s
windows-msvc-shared (PARQUET)	39m 13s
windows-msvc-shared (XML)	4m 0s
windows-msvc-shared (UBJSON)	7m 22s
windows-msvc-shared (TOML)	4m 25s
windows-msvc-shared (YAML)	4m 53s
windows-msvc (MSGPACK)	4m 34s
windows-msvc (TOML)	4m 10s
windows-msvc (CBOR)	8m 46s
windows-msvc (AVRO)	8m 13s
windows-msvc (benchmarks)	46m 50s
windows-msvc (PARQUET)	38m 25s
windows-msvc (FLEXBUFFERS)	5m 30s
windows-msvc (UBJSON)	7m 56s
windows-msvc (XML)	4m 17s
windows-msvc (YAML)	3m 57s
windows-msvc (JSON)	10m 24s
windows-msvc (CAPNPROTO)	8m 47s
	4h 14m 14s

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