chore: remove generated sg_execution_times.rst file #1748

Job	Run time
Build wheels on Linux (aarch64/manylinux)	22m 30s
Build wheels on Linux (x86_64)	24m 6s
Build wheels on Linux (i686)	19m 23s
Build wheels on macOS (x86_64)	16m 13s
Build wheels for WebAssembly	6m 0s
Build wheels on Windows (Win32)	10m 11s
Build wheels on macOS (arm64)	8m 13s
Build wheels on Linux (aarch64/musllinux)	9m 17s
Build wheels on Windows (x64)	28m 25s
Build sdist and test extra dependencies	2m 15s
Build with sanitizers for debugging purposes	2m 6s
	2h 28m 39s

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