JIT

Fix unused variable 'COLORS' warning in optimizer.c (#144373) #5174

Job	Run time
Interpreter (Debug)	10m 54s
Free-Threaded (Debug) (21)	17m 45s
JIT without optimizations (Debug) (21)	13m 5s
JIT with tail calling interpreter (21)	4m 44s
aarch64-pc-windows-msvc/msvc (Release)	17m 14s
x86_64-pc-windows-msvc/msvc (Debug)	24m 59s
i686-pc-windows-msvc/msvc (Release)	14m 17s
aarch64-pc-windows-msvc/msvc (Debug)	23m 6s
x86_64-unknown-linux-gnu/gcc (Debug)	12m 53s
x86_64-pc-windows-msvc/msvc (Release)	14m 30s
aarch64-apple-darwin/clang (Release)	10m 22s
x86_64-apple-darwin/clang (Debug)	27m 51s
x86_64-apple-darwin/clang (Release)	1h 30m 17s
aarch64-unknown-linux-gnu/gcc (Release)	6m 57s
aarch64-unknown-linux-gnu/gcc (Debug)	8m 20s
aarch64-apple-darwin/clang (Debug)	14m 25s
x86_64-unknown-linux-gnu/gcc (Release)	8m 32s
i686-pc-windows-msvc/msvc (Debug)	27m 52s
	5h 48m 3s

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