JIT: Avoid unnecessary extra sections for crossgen producing PE outside Windows

[jakobbotsch]

crossgen2 still produces PE outside Windows in some cases. It means this condition is not accurate:

runtime/src/coreclr/jit/ee_il_dll.cpp

Lines 1140 to 1151 in b7a0ff8

	bool Compiler::eeDataWithCodePointersNeedsRelocs()
	{
	#if defined(TARGET_ARM64) || defined(TARGET_LOONGARCH64) || defined(TARGET_RISCV64)
	// On these platforms, for ELF/MachO, we allocate this data in read-write
	// data and need to report relocations to the EE. Otherwise we allocate
	// next to the code chunk and hence do not need to report any relocs.
	return opts.compReloc && !TargetOS::IsWindows;
	#else
	// Other targets allocate code and data separately and always needs relocs.
	return opts.compReloc;
	#endif
	}

See also https://github.com/dotnet/runtime/pull/124203/changes#r2875455844

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[jakobbotsch]

I don't think this is that important given that it isn't causing correctness issues, so will move it out.