s390/qdio: remove internal polling in non-thinint path
For non-thinint devices in LPAR, qdio polls an idle Input Queue for a little while to catch more work. But platform support for thinints has been around practically _forever_ by now, so this micro-optimization is seeing 0 actual use. Remove it to reduce the overall complexity of the hot path. In the meantime we also grew support for driver-level polling (eg. NAPI in qeth), so it's quite questionable how useful this would actually be on current kernels. Signed-off-by:Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by:
Heiko Carstens <hca@linux.ibm.com>
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