Remove deprecated from_plan function #31587

Job	Run time
cargo check	6m 1s
build with wasm-pack	2m 22s
Check cargo fmt	31s
cargo test (macos)	11m 37s
cargo test (macos-aarch64)	11m 11s
Verify MSRV (Min Supported Rust Version)	7m 26s
Verify Vendored Code	52s
cargo test (win64)	46m 35s
cargo examples (amd64)	13m 30s
clippy	5m 57s
cargo test (amd64)	9m 58s
cargo doc	3m 57s
cargo test datafusion-cli (amd64)	4m 1s
cargo test doc (amd64)	14m 38s
Run sqllogictest with Postgres runner	3m 25s
cargo test pyarrow (amd64)	2m 50s
verify benchmark results (amd64)	11m 57s
check Cargo.toml formatting	2m 49s
check configs.md is up-to-date	2m 36s
cargo test hash collisions (amd64)	14m 17s
	2h 56m 30s

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