chore: remove generated sg_execution_times.rst file #1751

Job	Run time
Build wheels on Linux (i686)	19m 18s
Build wheels on Linux (x86_64)	24m 22s
Build wheels on Linux (aarch64/manylinux)	21m 33s
Build wheels on Linux (aarch64/musllinux)	6m 21s
Build wheels for WebAssembly	6m 14s
Build sdist and test extra dependencies	3m 12s
Build wheels on macOS (arm64)	8m 25s
Build wheels on Windows (Win32)	9m 32s
Build wheels on macOS (x86_64)	16m 16s
Build wheels on Windows (x64)	26m 25s
Build with sanitizers for debugging purposes	2m 5s
	2h 23m 43s

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