Revert "sched: Export nr_running symbol for use by smartassV2 CPU governor."

This reverts commit 358fd3c1e59e7fcb051444bcc3ab7214dc5cdbcc.
Revert "net sched: Fix some kernel memory leaks"

This reverts commit 4946ee0ce745293a50bb2bd23dfb092f3afdf10e.