[core] remove unused println statements in tests

10 jobs for 191 in 44 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Check Workspace
failed #265811
linux-docker
cargo-build-nf

00:00:20

failed #265805
linux-docker
cargo-check-af

00:00:43

failed #265806
linux-docker
cargo-check-nf

00:00:43

failed #265808
linux-docker
cargo-clippy-af

00:00:16

failed #265809
linux-docker
cargo-clippy-nf

00:00:16

failed #265807
linux-docker
cargo-fmt

00:00:17

failed #265810
linux-docker
cargo-test-af

00:00:16

 
  Examples
skipped #265814
linux-docker
examples-abi
skipped #265813
linux-docker
examples-test
skipped #265812
linux-docker
examples-wasm
 
Name Stage Failure
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cargo-check-nf Check Workspace
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cargo-check-af Check Workspace
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cargo-build-nf Check Workspace
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cargo-test-af Check Workspace
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cargo-clippy-af Check Workspace
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cargo-clippy-nf Check Workspace
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cargo-fmt Check Workspace
No job log