8355577: Remove old sparc remnants in the hotspot linux code

[MBaesken]

Linux SPARC support is long gone, but there are a few remnants of SPARC support in hotspot Linux coding. Remove them where it is beneficial to clean up.

I kept sparc in the shared lib handling code because this runs on other platforms too.

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Issue

• JDK-8355577: Remove old sparc remnants in the hotspot linux code (Bug - P4)

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[mlbridge]

Webrevs

• 00: Full (49f8fff6)

[zhengyu123]

arch_array also contains SPARC specific definition, e.g. https://github.com./openjdk/jdk/blob/master/src/hotspot/os/linux/os_linux.cpp#L1754, you might want to remove them as well.

[ptribble]

Would any of this code be used by zero? I know Debian ship the zero jdk on sparc.