Revert "jamiethemorris_defconfig: enable power efficient workqueues"

This reverts commit a3d7df2c858eb0681bb2bebf17a9855dba705064.
Revert "[LINARO] ASoC: jack: Use power efficient workqueue"

This reverts commit 8b1ece9c72a05ea3914a82c8cf6a7c7879712aba.
Revert "[LINARO] regulator: core: Use the power efficient workqueue for delayed powerdown"

This reverts commit 6dbb42c2068e3505d02377ebdfc144d2f35e89f0.
Revert "[LINARO] ASoC: pcm: Use the power efficient workqueue for delayed powerdown"

This reverts commit 47911f3295feef25612da3e1e53a4c4a4790f8b9.
Revert "[LINARO] PHYLIB: queue work on system_power_efficient_wq"

This reverts commit 34be1c7a533ed40e102680a76998b5b3d53de9f5.
Revert "[LINARO] block: queue work on power efficient wq"

This reverts commit 324ff2e11d9e1e43daf6a067fd51237509757634.
Revert "[LINARO] workqueue: Add system wide power_efficient workqueues"

This reverts commit a2631e4bcf9db2a94f27eb5bcc62728f8869f95e.
Revert "[LINARO] workqueues: Introduce new flag WQ_POWER_EFFICIENT for power oriented workqueues"

This reverts commit 04a369d2226a09012433d82e5684509ce6ae5b6c.