Revert "add the simple i/o scheduler cleanly"

This reverts commit f059a05da03dd5a5a27ad26a676f24fe2d7faf55.
Revert "zen i/o"

This reverts commit 53a06a6429d4f30e7a354347ff3acbeb3f8b3722.
Revert "QE/FHCI: fixed the CONTROL bug"

This reverts commit 80a6b7bd7f0351adcb88affdfc96392feb3ccad7.
Revert "USB: echi-dbgp: increase the controller wait time to come out of halt."

This reverts commit 241f581c3a28252100bd339d5750c58e3bb05b3a.
Revert "usbdevfs: Correct amount of data copied to user in processcompl_compat"

This reverts commit 53d90e17570540a7d14fcc3a659ffb733981e456.
Revert "USB: cdc-wdm: fix lockup on error in wdm_read"

This reverts commit 279945d1736e2377f30f1f60c610f561a410e9bf.
Revert "USB: fix gathering of interface associations"

This reverts commit b75eb38c9ed848844fdda39bc951c543fc28c49a.
Revert "USB: option: fix port-data abuse"

This reverts commit a62c1ceba0d9e53c9b99033bd91189fe6418c8ab.
Revert "USB: option: fix memory leak"

This reverts commit e080d367f8ca007cfd04498756c073ba2a47af0a.
Revert "USB: Remove races in devio.c"

This reverts commit 68f6833834217a0f04e4045a91fca76cb7020dee.
Revert "USB: cdc-wdm: poll must return POLLHUP if device is gone"

This reverts commit 3f39387dee733f899d09c609629e43fbaa233458.
Revert "USB: cdc-wdm: fix race leading leading to memory corruption"

This reverts commit bd5d269aab3b0d405d5dd972ab29944d0fd571ea.
Revert "EHCI: fix criterion for resuming the root hub"

This reverts commit dd7a61732a9f0770117ff1425bd7bf007014bf99.
Revert "xhci: Don't write zeroed pointers to xHC registers."

This reverts commit 17d8dfe703b5bbc70d4522fd2cf834badb400e1d.
Revert "USB: don't clear urb->dev in scatter-gather library"

This reverts commit a7d8221a8b0ce5560565727669f09ef0a798c243.
Revert "USB: serial: fix race between probe and open"

This reverts commit c9a4aa05472c95960d1a4ff9a874873c43e7d976.
Revert "cdc-wdm: Don't clear WDM_READ unless entire read buffer is emptied"

This reverts commit 1b54eeb791d27ee732b4a478c111c48369036543.
Revert "cdc-wdm: Fix more races on the read path"

This reverts commit 25141c8806443e167e6bbced0a0ca6b3d1b3528a.
Revert "USB: serial: fix console error reporting"

This reverts commit 8bdf1eb0e1e97734d0adcbbeda17db31cc6e566e.
Revert "usb-storage: fix freezing of the scanning thread"

This reverts commit f6938a6389c600d0c0e0f8f6c0aba4f32b64ed94.