Remove solaris files

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

sys/prctl_solaris.go

@@ -1,19 +0,0 @@
-// +build solaris
-
-package sys
-
-import (
-	"errors"
-)
-
-//Solaris TODO
-
-// GetSubreaper returns the subreaper setting for the calling process
-func GetSubreaper() (int, error) {
-	return 0, errors.New("osutils GetSubreaper not implemented on Solaris")
-}
-
-// SetSubreaper sets the value i as the subreaper setting for the calling process
-func SetSubreaper(i int) error {
-	return errors.New("osutils SetSubreaper not implemented on Solaris")
-}