syscall: remove use of IN_KUBERNETES in test, add a TODO to improve further
syscall: remove use of IN_KUBERNETES in test, add a TODO to improve further

Updates #34956

Change-Id: I35c39f3afda7226eeae0fd6936f7ee0d5d6c025b
Reviewed-on: https://go-review.googlesource.com/c/go/+/201737
Run-TryBot: Brad Fitzpatrick <ae9783c0b0efc69cd85ab025ddd17aa44cdc4aa5@golang.org>
Run-TryBot: Bryan C. Mills <1c8aad60184261ccede67f5c63a0d2a3bf3c9ff4@google.com>
Reviewed-by: Bryan C. Mills <1c8aad60184261ccede67f5c63a0d2a3bf3c9ff4@google.com>
TryBot-Result: Gobot Gobot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>

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