cmd/link/internal/ld: re-enable DWARF tests on solaris/illumos
cmd/link/internal/ld: re-enable DWARF tests on solaris/illumos

It looks like these are fixed on current tip after CL 84655
marked them to be skipped.

Fixes #23168

Change-Id: I0020e6da1042f723eb54186ef0fe925df5326230
Reviewed-on: https://go-review.googlesource.com/c/go/+/349250
Trust: Tobias Klauser <0a68dd4915066ec5d3f81f75a828fee53dcc8822@gmail.com>
Run-TryBot: Tobias Klauser <0a68dd4915066ec5d3f81f75a828fee53dcc8822@gmail.com>
Reviewed-by: Cherry Mui <d62e63aa42ce272d7b6a5055d97e942b33a34679@google.com>
Reviewed-by: Than McIntosh <4b2922593166fc595a9b1a408f34f5d3817fe9d2@google.com>
TryBot-Result: Go Bot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>

nawawi/go,cloudflare/go,cloudflare/go,nawawi/go,cloudflare/go,nawawi/go,CAFxX/go,golang/go,golang/go,CAFxX/go,CAFxX/go,CAFxX/go,nawawi/go,golang/go,golang/go,CAFxX/go,CAFxX/go,CAFxX/go,cloudflare/go,golang/go,golang/go,cloudflare/go,nawawi/go,golang/go,nawawi/go,cloudflare/go,cloudflare/go,golang/go,nawawi/go,nawawi/go,cloudflare/go,CAFxX/go