Kyoto: Remove connection requirement to send tx #810

Job	Run time
Build and test (1.75.0, --features default)	1m 13s
Build and test (stable, --features default)	15s
Build and test (1.75.0, --no-default-features)	1m 13s
Build and test (1.75.0, --all-features)	2m 1s
Build and test (stable, --all-features)	25s
Build and test (stable, --no-default-features)	29s
Rust fmt	8s
	5m 44s

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