[UT2004 Linux Installer] Use the system shipped OpenAL and SDL3 libraries first might be no longer the best practice

[darkranger-red]

Hello,

I have tested the recently released v3374p23 patch on both Fedora 43/RHEL 9 machines. And I don't see any obvious issues if I just leave libopenal.so.1 and libSDL3.so.0 in the System folder and not deleting them. If we can find more people to confirm this, then I think it might be better to no longer deleting them via the installer script:

FullGameInstallers/Linux/install-ut2004.sh

Lines 2196 to 2204 in 93158c0

	# Remove provided libopenal if provided by the system
	if [[ -f "${SYSTEM_FOLDER}/libopenal.so.1" ]] && [[ -n "$(step::ut2004_special_fixes::find_library libopenal.so.1)" ]]; then
	rm -f "${SYSTEM_FOLDER}/libopenal.so.1" "${SYSTEM_FOLDER}/libopenal.so.1."*
	fi
	# Remove provided libSDL3 if provided by the system
	if [[ -f "${SYSTEM_FOLDER}/libSDL3.so.0" ]] && [[ -n "$(step::ut2004_special_fixes::find_library libSDL3.so.0)" ]]; then
	rm -f "${SYSTEM_FOLDER}/libSDL3.so.0" "${SYSTEM_FOLDER}/libSDL3.so.0."*
	fi

Using the system shipped libraries may also lead to the potential outdated/incompatible issue. On my RHEL9 machine, the shipped OpenAL Soft version is 1.19.1. If I use this version to run v3374p23, a couple of the alSetError error messages will show up. But if using the patch shipped 1.24.3 then the error will be gone.