JIT

GH-125515: Remove two unused error branches. #3347

Job	Run time
Interpreter (Debug)	9m 22s
Free-Threaded (Debug) (19)	14m 4s
i686-pc-windows-msvc/msvc (Debug)	21m 5s
i686-pc-windows-msvc/msvc (Release)	12m 15s
x86_64-pc-windows-msvc/msvc (Debug)	20m 10s
x86_64-pc-windows-msvc/msvc (Release)	11m 23s
aarch64-pc-windows-msvc/msvc (Debug)	26m 10s
aarch64-pc-windows-msvc/msvc (Release)	17m 0s
x86_64-apple-darwin/clang (Debug)	13m 3s
x86_64-apple-darwin/clang (Release)	10m 39s
aarch64-apple-darwin/clang (Debug)	10m 16s
aarch64-apple-darwin/clang (Release)	8m 25s
x86_64-unknown-linux-gnu/gcc (Debug)	10m 13s
x86_64-unknown-linux-gnu/gcc (Release)	6m 11s
aarch64-unknown-linux-gnu/gcc (Debug)	6m 43s
aarch64-unknown-linux-gnu/gcc (Release)	5m 19s
	3h 22m 18s

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